crisycent:
The girl is not telling the truth. Simple reason for this is that the lecturer had a condom on. I know it takes only a few seconds to wear a condom but throughout these seconds, what was she doing? Was she just standing there thinking he will dance shakitibobo with it?

She said the lecturer asked her to pick a piece of paper and then he pushed her to the corner of the couch and removed her trouser and underwear. I will assume this was the first step before he wore condom. If he removed the girl's trouser, he probably used both hands meaning the lecturer didn't close her mouth and she could shout for help. The lecturer's hands were engaged, hers weren't. What did she do? Was she just positioned for a doggy?

Why didn't she raise the alarm while she was still in school? If the lecturer had raped her and begged her afterwards not to tell anyone about it, he would have asked the father to bring her again the next day so he could pet her further and make sure everything was okay with her. The lecturer didn't bother because she asked for it or wanted it and he felt she would be mature enough to keep it to herself.

I believe it was consensual and probably it was the first time for the girl and maybe the lecturer is highly endowed too. As things got intense, she felt the pain and when she got home, the pain didn't stop and she panicked and told her parents that she was raped.

You probably have it right. It's possible she didn't want it, but clearly she didn't resist it with all her might. Didn't we read earlier here about a 10-year old that screamed to stop a rape? I'm still kinda wondering what she did after the man walked to the door to lock it.
Ask Nigerian university girls all around who go to lecturers' offices to make enquiries. They map out an exit once they get it.

Still though, the man is also not telling the whole truth.

sweatlana:


It's quite shocking the view of these young men. I thought they were enlightened but obviously I was wrong.

It's not just the leaders in this country that is screwed up almost every one is!

I don't support "this view", but apparently it's not only espoused by these young men. Some women may also share same opinion. Beremx is (f)

Without doubt, the man is lying. If it were consensual, the girl would clearly not have told her dad.

If eve wasn't a woman, how did she beget Cain and Abel?
I don't believe bible stories though

Laplacian:

100%

While I agree with your last statement about the whole number of revolutions, I disagree with your solution. How did the "Log" function even come in there? "Log", not "In"? Anyways, let me examine the question....

Laplacian:

ok. I was in a car then.
Let k=√[1+(2a/n)²] then,
S=2aLog[(k+1)/(k-1)]

N=S/L=(1/#)Log[(k+1)/(k-1)].
An important deduction is that no circle can ever make whole number of revolutions

you sure about this?

peedeeasobie:





Anything could have started a chain reaction that led to man? good analysis indeed. so the thing started a chain reaction and the reaction stopped? and man started producing man? the same reaction started animals and trees and stopped?

There is a fundamental problem with thinking that man is so special that a chain reaction/any chain reaction could have lead to his creation. If this reaction is proceeding at a crawling at an almost imperceptible rate, then you certainly wouldn't see it in your lifetime. That doesn't mean it is not happening. Scientists who are looking at a bigger picture over chains and chains of fossils can see this. Check the data.

whatever made/started such an intelligent being called man must in himself/itself be intelligent. it cannot just be a reaction! Look at the universe, the world, etc, this is not just some accidental sett off that started a reaction!

this is a masterful and well planned creation by an intelligent being.

Whatever made man doesn't have to be intelligent. Don't get it wrong. The fastest computers today (hypercomputers, supercomputers) can do calculations humans will never ever dream of computing. These calculations they'll do in microseconds; yet in a lifetime humans can never do such calculations. How about that? Didn't humans create these computers? How come they are smarter (at least in that regard) than their creators? Don't be so carried away.

if something/someone made you, your life directly or indirectly is bound to the person. Look at our earthly parents, they hold a certain form of control over us- which can be viewed as a type of honour/worship.


The talk and emphasis on Nigerians and their being religious is stale. Americans have religions/religious people. Other developed nations do also.

That then is where the problem lies. Maybe in Nigeria, your parents hold "a certain form of control over" you. You can't say that for others.

Laplacian:

all things being equal, the equation of the parabola is;
4ay=x², now the length of any curve is given by;
S=§√[1+(y')²]dx, in our case, y'=x/2a, integrate from x=-n to x=n,
S=§√[1+(x/2a)²]dx, substitute x=(2a)tan@, the integration should be easy for you!! The length of the circle is
L=2#a, so the number of revolutions N=S/L.
Am lukin for a concise way of solving Jackpot's second problem without rotating the axis.

Good work. You on track. I was hoping you'd give the full solution, though. So, we can see the relationships clearly and see if it offers any insights (hyperbolic or parabolic trigonometric functions).
Good try still.

peedeeasobie:




It takes absolute stupidity to support the atheistic view!

whims and caprices of nature huh? This is the type of shallow answer you want us to give in exchange for a "god"?

Nature made man, nature made the waters, the planetary systems, nature made the animals, nature made the sun, made trees etc, who/what made nature?

If "something" made nature, that "something" must be God! If nothing made nature, then nature is God!


Moreover you are the one too scared to accept the belief in a "god"! You want an excuse to live anyhow and hope it all ends in the dust!

That you don't understand something doesn't mean its not real!

Not very good analysis here.
It doesn't look to me like "something must be God". Must "something" be God? Must there be a God? Could it as well not end with nature? Nature having come about by slow steps over billions of years. Anything could have started that chain reaction that led to man, and that thing mustn't be God; it could as well be something we will know much later, but are just yet to know.

And even if nature is indeed God, as you claim. Must one believe in this "God"? Why should he have to excuse "living anyhow", as you put it? How is one's life or living bound to this "God"? At the end of the day, it looks to me you are eventually trying to extend that line from believing to worshiping. And that's where all you Nigerians get it wrong.

So, I have a problem that occured to me while solving the parabola problem earlier. Don't know if you guys are interested

Given a parabola, a circle with radius the length of parabola focus is placed at a point N on the parabola, n distance away from the center of the parabola. If this circle falls along the parabola and rises to the other end of the parabola, equally n distance away to the right, how many revolutions will it make? You can express answer in terms of all constants.

I'm wondering this may have some application with planetary bodies

tags: agentofchange1, dejt4u, Laplacian, Antoinne, Karmanaut, doubleDx, etc

santosesq1:
Am still waiting for a time africians would learn to decide their matters themselves and not allow the white to decide for them..Can Obama be jailed for corruption in Nigeria? ICC keeps purchasing blacks for war crime and we would never rise to defend ourselves.
. How mny yorubas/huasa/ibo man has been sent to jail ? Is ibori the bigest thief in nigeria ? Dimeji bankole used nat assembly as colateria to take loan what hapened ? Obj,aabacha,ibb,mko,umaro dikko etc how many were jailed ? Will sepp blatter be jailed in nigeria ? How long are we remaining slave to the albinos called oyibo white folks ?. Ibori stole but his impact was felt. Wht did obj did ? Ibori to return March 2016. Deltans can die for Ibori cox he dosnt eat alone like other politicians we know.

You are stupi..d! Did Sepp Blatter launder money to Nigeria? If your Ibori laundered money to London, white man's land, which he did, then he deserves every inch of what he's getting!

Karmanaut:


PS: Seun, we need LaTeX on Nairaland.

You wish he could do that!

otunsman:
They should audit the bank account. It is rare for a northerner who occupy such an exalted post as this to resign.He might have looted depositors money.

didn't see this before writing. But man, are you damn right!

CFOs don't resign for no reasons. Something is going down in this company and there's a need to look closely, especially as the share price has fallen. The guy most likely has also dumped some shares, or some people have been dumping shares. Trust me, this isn't the last you'll hear of this.

Laplacian:

Assuming parabola at origin and following definition y = 4px²?

Corrected. thanks

The same black mentality we should abhor is what we continue to promote. What then is so special about the first youngest "female black"? Are blacks such underachievers and a dumb race that they should celebrate the first black female, instead of the first female

jackpot:
Well, unlike integers that are either even or odd, a function may be neither even nor odd, eg h(x)=sin x-cos x, x+x².
Also, functions may have non-integral exponent, eg h(x)= x^e=x^{2.718281828. . .} or p(x)= £ x, where £ is the Gamma function or q(x)=x^2/7.
Now, my question is: how are we sure that there are no neither-even-nor-odd functions f satisfying the equation:
f(x)-f(-x)= -1/x ?

I think you right. We cant know unless otherwise stated. And I think you provided a solution already if f(x) were odd.

jackpot:
please, help me out.

[b]1. Consider the parabola: x=(3-2y)(4y+3). Obtain
i. Directrix equation
ii. Focus
iii. Vertex
iv. Length of it's latus-rectum

Parabola of x = (3-2y)(4y+3)
x = 12y + 9 - 8y² - 6y
x = 9 + 6y - 8y²

Parabola is about y, since y has two values.
We can treat this as a mirror y = 9 + 6x - 8x², and then invert the mirror at the solution, if x is easier to work with.

anyways, for a parabola y = ax² + bx + c with a focus at p distance above the vertex V(h,k).
dy/dx = 2ax + b. At the vertex, you have the least variation, so dy/dx=0
2ax + b = 0
x = -b/2a, this should correspond to h.

y = ax²+bx+c at x = -b/2a, k
k = (4ac - b²)/4a

Assuming parabola at origin and following definition 4py = x²
Move parabola to right of xy plane so that vertex is V(h,k)
4p(y-k) = (x-h)²
Relating coefficients produces p = 1/4a, (focus)

Latus-rectum is length across focus.
if Parabola at origin (0,0)
4py = x²
with y = p on curve
x² = 4p.p = 4p²
x = 2p

Length of latus-rectum
2.x = 4p

Now, from earlier equation y = 9 + 6x - 8x² (mirror)
a = -8, b = 6, c=9

focus, p = 1/4a = 1/(4*-8 )
=-1/32

Vertex, V(h,k)
h = -b/2a = -6/(2*-8 ) = 3/8
k = (4ac - b²)/4a = 81 / 8

Length of latus-rectum = 4p
=abs(4.(-1/32)) = 1 / 8

Directrix equation: y = 325/32, i.e. (1/32 + 81/8 )

We can now go ahead and mirror our solution by just changing all x to y, and y to x
i. Directrix equation: x = 325/32
ii. Focus: -1/32
iii. Vertex: V(81/8, 3/8 )
iv. Length of it's latus-rectum: 1/8

Laplacian:

u'r right, they form a right angled triangle...maybe i shoul just take a rest!

I like your inquiring mind though. Naturally i wouldn't have done it the way you intended to do it. Most textbooks wouldn't, since it's just easy to use the dot product. But your approach to understanding it from "first principle" is commendable.
Still give it a try when you free. Just think about resolving the elemental area and not the individual distances.
Let me see if there's an approach to resolving the individual distances and I'll get back.

Laplacian:

yes, i think they will b equal. This new diagram luks beta

Come on! No, they will not be equal. Look at the diagram again. "A" will have to be

A.cos(phi) = dx. Not A = dx.

You see it?

MaxGraviton:
Please, This is really Urgent. Someone should please help me with the name of that Maths textbook popularly known as BONDE. . . Bonde is the name of the person that wrote the book. But Please I need the actual name. Thanks.

Pure Mathematics for Advanced Level
by B.D. Bunday & H. Mulholland

agentofchange1:


ok here

There seems to be a mistake in the first two lines in the first picture with y². Would affect the final answer significantly.

agentofchange1:


ok here

Good job, agentofchange1.

Laplacian:

i honestly appreciate ur effort sir! u explained exactly what i did, i know u have explained why it is not proper to resolve distances and obtain elemental area on the surface but i cant understand ur explanation on account of ur diagrams, i cant fit them together, pls snap a neat copy......i felt even if y depend on x at z=0, it should stil not affect d result because altering d original elementary area dS will also alter its projection on the surface...

I took it you'd understand my little explanations.
Let's get the first part sorted. Look at the attached pic.

After resolving the elemental distances, dx & dy and multiplying. Follow the extension down to y = 1-x at z=0, you'll see that the distance dx on the other side is not exactly parallel to the distance you just resolved. I marked it with "A". There's still some kind of triangle there, showing that you elemental distance is not representative of the surface.

If that's too difficult, look at the basic 2D triangle below it. If you took a small portion on the x-axis called dx. Do you think it'll be equal to the length marked "A" on that same triangle merely by tracing it up?

It's the same thing happening on that surface above. You get it?

naturalwaves:

Nice analysis. Bravo!

Thanks

Laplacian:
Am having trouble with an example in; Advanced Engineering Mathematics, K.A stroud: page 759, example 2; i understand their method but on applying a different method (which looks logical), am getting a different answer (dS=5dxdy). So, using any other method apart from the one provided, find the element of Area dS on the triangle. See fig. Below
tags; jackpot, agentofchange1, doubleDx, dejt4u, Alphamaximus, jaryeh

I suppose the way you were doing it was to resolve dx on one hand, and dy on the other to the lines at y=0 & x=0 respectively, so that you obtained dSx = sqrt(5)dx & dSy = sqrt(5)dy

And you then did, dS = dSx.dSy = 5dxdy. if this is how you did it, then you are wrong.

you should understand that even though, you had rightly resolved the elemental distances, you can't multiply them on that surface, because the surface is also bounded by y = 1-x (at z=0) which means in that plane, x is still dependent on y. If you had the snapshot below (Fig 1) where the elemental distance dy will not be dependent on x anymore on that surface, then it would have made sense.

So, it's easier to use vectors. Cos what you want to do is simultaneously apply the relationships given by the curves while still taking their dependences into consideration. In this way, you'd almost be resolving the surface itself dS and not the elemental distances.

Look at Fig2, where the same surface has been resolved onto the xy plane. On that xy plane, the last coordinate that is the projection has its last coordinate at (1,1,0). So, if you had an elemental area on that surface dS₁, you can then obtain the angle between that area and the surface with its top coordinate (1,1,2). Note that that is a mirror image of the surface in question, but in a different quadrant.

So, the angle between the two surfaces will be
(-0.5i-0.5j).(-0.5i-0.5j-2k) = sqrt(0.5).sqrt(4.5).cos(phi)
cos(phi) = 1/3.

dS.cos(phi) = dS₁
dS = dS₁/cos(phi) = 3dS₁

dS₁ = dxdy

So, dS = 3dxdy.

This elemental area will be the same as the elemental area on the main surface (they are simply mirror images).

Note: you could have resolved to the other side (270-360deg), and you'd have the same answer

Edited.

cococandy:
@ topic, I believe in reorientation. The average person out there is warped and almost imbecilic in reasoning. No offense.
How do you explain blaming and shaming victims while the perp goes around proudly like he did nothing. An added trauma on top of the one they've already been subjected to during the rape?
How do you explain a victims being asked "what were you wearing when it happened?". A simple but powerful question that connotes it is not the criminal's fault but the victims. How do you explain everyone around including law enforcement hushing victims and sometimes reprimanding them for not collecting money to just overlook what was done to them?

Until such diseased mindsets are scraped from among us, we would be pouring water on stone.
We need an overhaul. A very very sensational (if exaggerated) campaign against any form of sexual offenses regardless of if the victim walked out of his or her house neykid. Starting from the grassroots. Primary schools and working upwards. hopefully catch those ones young if we are lucky, some who have already grown with such mindsets will learn better.

Punishment too (long long jail terms). Like someone already suggested.
I don't even know how the sex offenders list will work when we don't have active database. How many employers can afford to run background checks in Nigeria. Maybe the big companies. But the smaller ones in smaller communities can't do such. They'll just employ a pedophile and set him or her to babysit kids.

I tire seriously.

A privately managed database simply can't work in Nigeria. Sooner you'll find people using it to get back at those who have offended them in other ways. Besides, why put someone's name on a list when a court hasn't exactly found the person guilty. If anything should work, it'll be good laws seen through by law enforcement.

Nigeria is just a hell hole. For Goodness's sake, it doesn't take anything to jail offenders for a long time. Laziness, lack of drive and unequivocal disinterest in poor people's affairs is why public attorneys don't see to convictions here.

Unfortunately this will take a long time to change.

kendraloops:


ki ni n je be? hian o! oi ti da nkan mo. ara oko jatijati

Where in the world are you from? The zoo?

Donald Trump can't win, that's for sure. You don't win the american presidency based on rhetorics.

kendraloops:
I tire for this kain thread o, hian! Kelembe, tuwee(spits out kelembe)

gross

What sort of madness is this? Just when you thought you understood Nigerians enough...
Hero worship/sycophancy is just what these people are good at.