₦airaland Forum

all4naija:
Solve for (9!/3! -n!) * 0! - 3! when n = 8.

20154

God is good!

ikechukwu354:
if I make something educative it wont make fp but this does, still not surprised why this country is still this way...

Exactly!

dayojags10:
BaddestBaddest work hard, yu same age with him

Lol, I've heard you sir. Thanks...

What do we make of this post?

This is great! An interesting thread!

Eh, sorry bro. wish you rapid recovery ijn.

This is terrible!

Number 2 is unbelievable.

^^i read it sometimes back(just roughly during first semester holiday i think). i am very happy that i recalled the formula without much racking of brain. cool

Karmanaut:
This is elementary.

Defining the Wronskian as [img]http://tutorial.math.lamar.edu/Classes/DE/Wronskian_files/eq0036M.gif[/img]

The differential equation is:
t²y" +2t³y' - t²y = 0

First we divide all through by the coefficient of the second derivative (y" ) which leaves us with:

y" +2ty' - y = 0

Applying the Wronskian defined above we get:
W = c*e^{-∫2t dt}
W = c* e^{-t^2}
(Because the integral (anti derivative) of 2t = t² + C)
W = c* e^{-t^2}
where c is an arbitrary nonzero constant.
That's all.
Cheers.

good Job Bro. I would have posted the solution before you but i taught it should be more complex lol. it was just two lines. t^2y"+2t^3y'-t^-2y=0...divide 2ru by t^2...y"+2ty'-t^-4y=0...what i need here is just {2t}...W=ce^-$2tdt..-$2t=t^2+c..thus W=ce^-t^2..

elmajor:
Anyone with a step by step solution to the problem below?

There is a substance which can be diluted to a number of solutions. The concentration of the substance is 35%, which can be diluted to 12% and 3% concentration.
If one part of the 35% concentration is added to eleven parts of distilled water, it will give a solution of 3% concentration and one part of 12% concentration added to three parts of distilled water will also give a solution of 3% concentration.
The problem is how to get the solution of 12% concentration from the 35% concentration. So, how many parts of distilled water will added to one part of the 35% concentration to give the solution of 12% concentration?

i got 0.4%..how true?

elmajor:
Anyone with a step by step solution to the problem below?

There is a substance which can be diluted to a number of solutions. The concentration of the substance is 35%, which can be diluted to 12% and 3% concentration.
If one part of the 35% concentration is added to eleven parts of distilled water, it will give a solution of 3% concentration and one part of 12% concentration added to three parts of distilled water will also give a solution of 3% concentration.
The problem is how to get the solution of 12% concentration from the 35% concentration. So, how many parts of distilled water will added to one part of the 35% concentration to give the solution of 12% concentration?

your question is so weird! lol looks like chemistry but i think it can be interpreted mathematically,lera!

ayokunlei:
please kindly help me show how the Integral of sin square x(dx) equals 1/2Integral of (1-cos2x)dx.

Cc: agentofchange1, laplacian, kamarnaut,Umartins1, mathefaro, and other gurus

Hi,
To avoid stories lol
From R. Formula,
∫ sin^n(dx)=-1/n.sin^(n-1)xcosx+(n-1)/n ∫ sin^(n-2)xdx+.........«»
∫ sin^2x=-1/2sinxcosx+{x/2}+k.
In 1/2 ∫ 1-cos2xdx.. This is pretty simple.
∫ 1=x;
∫ cos2x=1/2sin2x.
Thus we have ,
1/2∫ (1-cos2x)dx=1/2(x-1/2sin2x)
But 1/2sin2x=sinxcosx.
Hence I=x/2-1/2.sinxcosx+k

Got it?

Use imgur.com and reddit to showcase your images! They are Nice! Bravo!.

Excellent! Very Nice!

Really Brilliant

congratulations! Wish you the best.

MaxGraviton:
Senior men and Women in the house. Pls I need help with this. . . Thanks in Advance.

1/2sqrt(x).Arcos[2/sqrt(x)]+k

A mathematical Approach.. Let 'us' be equal to k.. Thus, (k/2)+k+1=100; k+2k+2=100; 3k=198; K=66.

She probably invented her own L'Hospital Rule. Lmao!

London is the capital of Britain. It stands on both banks of the Thames River,in southeastern England. Founded in Celtic times and the Londinium of the Romans, the city has grown to become a vast commercial and trade center. The Greater London area consists of 32 boroughs. It has a population of 8,664,000. With an area of 607 square miles, it is, with Tokyo and New York, one of the three largest cities in the world.
The city owes its prosperity to its geographical position on a navigable river and its large port facilities at a chief entry point into England from the mainland of Europe. The docks are visited by ships from every part of the world, and handle an immense volume of trade. London is a great distributing center from which trunk railroad lines and modern roads branch out in every direction.
London is also a great financial center, and of major importance in banking and insurance. It is also the European center for gold distribution, and holds the gold and dollar reserves of all countries of the sterling area.
The city is the seat of government of the United Kingdom and a royal residence. The houses of Parliament (the Palace of Westminster) on the north bank of both houses of the British Parliament. Buckingham Palace is used by the Queen when in London. London is a great center of culture and education. The University of London (1836), its associated colleges, and many technical institutes of higher education attract students from the Commonwealth and all countries of the world. The museums and art galleries contain valuable collections of unending interest.
London is also a city of churches. Westminster Abbey has been the crowing place of almost all monarchs since the time of William the Conqueror and many are buried in the abbey choir. St. Paul's Cathedral, designed by Sir Christopher Wren in the late 1600's, stands in the city of London (the financial sector).
*One of London's best known sights is the Famous Tower Bridge spanning the River Thames. It cam be raised or lowered to permit the passage of ships.(see picture).
*Among the many attractions that draw thousands of tourists to London every year are colorful, traditional characters such as the Chelsea Pensioner and the Cockney Pearly King.

I started learning both python and c++ ( yes,at the same time) just last week. Now I can write console apps in both of them. I can also write a GUI app in python with Tkinter. I think its because of my dedication anyway.
Add me up with 08147276723 on whatsapp.

currently learning c++. 08147276723

That's impossible. I think it can be done on mywapblog or so. Not very sure.

Gabbyswit:
A lot of people send me mails that they find it hard to comment on my blog. It is not a good thing please i need solutions you can check out my blog www.gabbyspeaks.com

First, navigate to your blogger dashboard. Click settings_post and comment. Check the position of your comment box if it is embedded.
If that's not the problem, you have to re-install your template.

MsBella:
The website is not live yet. which means I am yet to post anything on it. I want to sort of the theme and other basic stuff before I put up content. To be honest with you, I rather remain on WordPress and figure out a way around it. Thanks for your suggestion.

Oh! Best of Luck..

celibate:
How can I get the template boss.

Hi Celibate, there are things I need to adjust in the template. The post body is not showing if you look closely. It's only the post title that's displaying.

Gabbyswit:
Nice template.. It is really cool good job. The colour for the write ups might need to be changed because they blend so well with the background on mobile view..

Aside that its a beautiful theme.

Thanks Mir, will work on it.

MsBella:
Nice theme you have there... However, I tried for hours to customize my Wordpress blog with a theme I downloaded from aThemes.com. It seems Wordpress removed the "Add new" widget on their site. Is this because I am using a free plan or is there a way around it? I need your help guys. I was really frustrated last night. Please help a JJC like me... lol.

Hi Msbella, whats your website link?. Using a third-party WordPress theme can be really frustrating.
Why don't you consider moving to blogger?
There are so many cool templates in blogger and they are quite easy to apply.

ejohnny39:
I want to change my blogger template to something better please help. I want a good free template I will also appreciate it if you can take a look at my blog and tell me how to improve it and get more traffic thanks

Use a template like 'Sora Store'. Search it up on google.
I recommend Sora store because of your niche!

use a responsive template.