Nairaland Mathematics Clinic - Education (214)

Nairaland Mathematics Clinic - Education (214) - Nairaland

Nairaland Forum › Nairaland General › Education › Nairaland Mathematics Clinic (546153 Views)

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Re: Nairaland Mathematics Clinic by agentofchange1(m): 9:34pm On Nov 29, 2015

LordPherule:
Generals, Please help me with these problems :

here..
Q1

Re: Nairaland Mathematics Clinic by ayokunlei(m): 10:56pm On Nov 29, 2015

agentofchange1:
its ok bro.. n bless u too.

BTW: check my solution on question 2

correct 'dy/dx ( ysinx) to. d/dx [ ysinx] ....(line 3 or 4)

twas a mistake ...' brain solves faster than hand. '

hope u get...

Thanks , I did get it. Final answer is y = sinx/2 + kcosecx.

Re: Nairaland Mathematics Clinic by ayokunlei(m): 10:58pm On Nov 29, 2015

ladokuntlad:
If am not here to solve the questions.
I can at least help u get a textbook that will help u grow in mathematical methods.
k.a Stroud is here at ur door step

https://nieeeslibrary.files./2013/01/advanced-engineering-mathematics-4th-ed-k-stroud.pdf

Thanks, I will download it. I appreciate.

Re: Nairaland Mathematics Clinic by ayodijex(m): 1:49pm On Nov 30, 2015

hmm.....its jackpot's birthday. still confused about her personality tho...
On behalf the maths family, HAPPY BIRTHDAY JACKPOT cool

2 Likes

Re: Nairaland Mathematics Clinic by jackpot(f): 8:54pm On Nov 30, 2015

ayodijex:
hmm.....its jackpot's birthday. still confused about her personality tho...

On behalf the maths family,
HAPPY BIRTHDAY JACKPOT

Thanks Sir. I'm humbled.

Re: Nairaland Mathematics Clinic by LordPherule(m): 8:51am On Dec 01, 2015

agentofchange1:
here.. Q1

Thanks bos. I really appreciate for touching that.

Re: Nairaland Mathematics Clinic by parkparky(m): 10:49am On Dec 01, 2015

Please help me solve this indices. If 2^n =y. Find 2

Re: Nairaland Mathematics Clinic by ladokuntlad(m): 12:49pm On Dec 01, 2015

parkparky:
Please help me solve this indices. If 2^n =y. Find 2

ur question aint complete or clear
check again

Re: Nairaland Mathematics Clinic by Nobody: 1:05pm On Dec 01, 2015

Jackpot, happy belated . Cheers.

Re: Nairaland Mathematics Clinic by John93(m): 1:28pm On Dec 01, 2015

Someone pls help with this question..

Find the probabilitiy that n people(n<=365) selected at random will have n different birthdays?

1 Like

Re: Nairaland Mathematics Clinic by ladokuntlad(m): 2:12pm On Dec 01, 2015

John93:
Someone pls help with this question..

Find the probabilitiy that n people(n<=365) selected at random will have n different birthdays?

Poisson formular will do that for u

Re: Nairaland Mathematics Clinic by jerome263: 3:27pm On Dec 01, 2015

following

Re: Nairaland Mathematics Clinic by iameugene(m): 4:02pm On Dec 01, 2015*

Re: Nairaland Mathematics Clinic by jerome263: 5:07pm On Dec 01, 2015*

[quote autho

Re: Nairaland Mathematics Clinic by orobosa26(m): 9:51pm On Dec 01, 2015

pls can I get a good recommended mechanical vibration textbook

Re: Nairaland Mathematics Clinic by John93(m): 2:38pm On Dec 02, 2015

ladokuntlad:
Poisson formular will do that for u

Thanks but pls I'll appreciate if u can help me out practically....

Re: Nairaland Mathematics Clinic by seuntosyn: 3:54pm On Dec 02, 2015

iameugene:
Add 07019747550 to join jamb whatsapp group

add me too 09030712744

Re: Nairaland Mathematics Clinic by cberryx: 12:50am On Dec 04, 2015

Please someone should help solve this:

SOLVE BY LAPLACE TRANSFORM, THE EQUATION

d^2 X/dt^2 +10(cos5t - 2sin5t) given that at t=0, X=1 and dx/dt = 2.

At the end, the final answer should be this: (2t + 1) cos5t + tsin5t. I have not been able to arrive at this answer. this question is in page 91 of Advanced Engineering maths fourth Edition.

Re: Nairaland Mathematics Clinic by agentofchange1(m): 7:31pm On Dec 04, 2015

check the question again , and edit Asap

cberryx:
Please someone should help solve this:

SOLVE BY LAPLACE TRANSFORM, THE EQUATION

d^2 X/dt^2 +10(cos5t - 2sin5t) given that at t=0, X=1 and dx/dt = 2.

At the end, the final answer should be this: (2t + 1) cos5t + tsin5t. I have not been able to arrive at this answer. this question is in page 91 of Advanced Engineering maths fourth Edition.

Re: Nairaland Mathematics Clinic by maryannah(f): 4:58am On Dec 05, 2015*

John93:
Someone pls help with this question..

Find the probabilitiy that n people(n<=365) selected at random will have n different birthdays?

Birthday problem
Use the formular Pn= Mpn \ M^n, where M is the number of days in a year. (365)

Re: Nairaland Mathematics Clinic by benji93: 12:54pm On Dec 05, 2015*

stlaibrowne:
I am 100000000000000% sure you need to read the question again. Because actually at t=60 h is not zero but h=-12000 and that's not zero. Get my point ?

Well my friend you are partly right, but your interpretation is not clear, the question says that if i look at the rocket at time t>20 i will see it at ground level, people from different fields will have different interpretation, as a physicist i would say that at h(60)=0,and the kinetic energy gained by the rocket as it reached ground level zero was dispelled into other froms of energy, including sound and heat

Re: Nairaland Mathematics Clinic by benji93: 1:16pm On Dec 05, 2015

MathsChic:
Only a mathematician can tell such joke, cos it's all in favour of mathematicians. Funny, clever joke

Today I was thinking something. The ratio of the circumference of a circle to its diameter is a number that doesn't occur in nature any other way, besides as a ratio of circumference to diameter. Isn't that just spectacular? Or am I wrong? Does it have other occurences?

a circle is the one shape that defines creation.

Re: Nairaland Mathematics Clinic by benji93: 1:19pm On Dec 05, 2015

I think the cross product of two or more vectors is as scalar as the dot product of the two vectors, but most mathematicians all over the world believe in it as a vector. I think there is something illogical about the general derivation of cross product.What do you think?

Re: Nairaland Mathematics Clinic by John93(m): 9:18pm On Dec 06, 2015

maryannah:
Birthday problem
Use the formular Pn= Mpn \ M^n, where M is the number of days in a year. (365)

still dnt gt.....could u pls solve on paper,snap & upload....thanks

Re: Nairaland Mathematics Clinic by Hadampson(m): 3:27pm On Dec 07, 2015

[color=#006600][/color]Please help me with this questions (1) integrate 7x+8/ 2x^2+11x+5 (2) diffentiate y=sinx/x^2 angry

Re: Nairaland Mathematics Clinic by Mathemagician1(m): 4:34pm On Dec 07, 2015*

Hadampson:
[color=#006600][/color]Please help me with this questions (1) integrate 7x+8/ 2x^2+11x+5 (2) diffentiate y=sinx/x^2

Re: Nairaland Mathematics Clinic by Hadampson(m): 5:51pm On Dec 07, 2015

[quote author=Mathemagician1 post=40779133][/quote]for d 2nd question, u r to use quotient rule nt product rule.

Re: Nairaland Mathematics Clinic by Mathemagician1(m): 6:17pm On Dec 07, 2015*

Hadampson:
for d 2nd question, u r to use quotient rule nt product rule.

You didn't notice that I re modified the equation. Whether you use product or quotient rule in this regard your answer is always going to be the same.

-x^-3(2sinx - xcosx) and (xcosx - 2sinx) / x^3 are the same.

Re: Nairaland Mathematics Clinic by jerome263: 7:13pm On Dec 07, 2015

waking my memory in maths

Re: Nairaland Mathematics Clinic by Hadampson(m): 10:25pm On Dec 07, 2015

Mathemagician1:
You didn't notice that I re modified the equation. Whether you use product or quotient rule in this regard your answer is always going to be the same.

-x^-3(2sinx - xcosx) and (xcosx - 2sinx) / x^3 are the same.

thanks mathemagician I rili appreciate it.

Re: Nairaland Mathematics Clinic by Mathemagician1(m): 6:16am On Dec 08, 2015

Hadampson:
thanks mathemagician I rili appreciate it.

You're most welcome sir.

Re: Nairaland Mathematics Clinic by Hadampson(m): 5:13pm On Dec 08, 2015

What course can someone study without physics?

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