Post: Good maths problem!
09-13-2010, 06:50 AM #1
xOMANx
Can’t trickshot me!
(adsbygoogle = window.adsbygoogle || []).push({}); Can anyone work out the answer to the below... I thought it was a pretty good one! Make sure you read it carefully!!!:

What is the four digit number in which the first digit is 1 quater of the last digit, the second digit is 6 times the first digit, and the third digit is the second digit plus three?

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Congrats Juko18!! You got it right!!!
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09-14-2010, 06:34 PM #11
TheManDavid
Your mother!
Originally posted by elfmotat View Post
That... wasn't good at all. I have a better one:

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If anyone solves this I will be highly impressed. (Show work plz).


Uhh... I give up already. I just looked at it and gave up. lol
09-14-2010, 06:58 PM #12
Anal Treat
NGU's resident prick
Originally posted by elfmotat View Post
That... wasn't good at all. I have a better one:

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If anyone solves this I will be highly impressed. (Show work plz).


It's something to do with a triangle?
09-14-2010, 07:00 PM #13
elfmotat
Rᵤᵥ - ½gᵤᵥR ∝ Tᵤᵥ
Originally posted by x
It's something to do with a triangle?


No... not even close.
09-14-2010, 07:02 PM #14
Anal Treat
NGU's resident prick
Originally posted by elfmotat View Post
No... not even close.


Whoever gets this right should place this as their avatar :

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The following user thanked Anal Treat for this useful post:

elfmotat
09-14-2010, 07:26 PM #15
Fionn
Banned
Originally posted by elfmotat View Post
That... wasn't good at all. I have a better one:

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If anyone solves this I will be highly impressed. (Show work plz).


So Intregal of Sin x squared?

Well you have to change the sin(x^2) to it's double angle side.
The doubled angle side of sin(x^2) is 1-Cos(x2). Then because of the intregal, We do 1/2. So this is now 1/2 1-cos(x2).

Am I close?
09-14-2010, 07:32 PM #16
Jomow
Smile and wave boys
You differentiate using the chain rule i believe.
09-14-2010, 07:35 PM #17
Anal Treat
NGU's resident prick
Originally posted by DESTRUCTINATOR View Post
You differentiate using the chain rule i believe.


If only I knew what this means...

Yo dawg, You live in Scarborough, I lived there for a year, Went to Raincliffe :P
09-14-2010, 07:37 PM #18
elfmotat
Rᵤᵥ - ½gᵤᵥR ∝ Tᵤᵥ
Originally posted by FionnDawg View Post
So Intregal of Sin x squared?

Well you have to change the sin(x^2) to it's double angle side.
The doubled angle side of sin(x^2) is 1-Cos(x2). Then because of the intregal, We do 1/2. So this is now 1/2 1-cos(x2).

Am I close?


It's not sin²(x), it's sin(x²). The x is squared, not the sine function so identities don't work.

Originally posted by DESTRUCTINATOR View Post
You differentiate using the chain rule i believe.


No.
09-14-2010, 07:39 PM #19
Jomow
Smile and wave boys
Its C4 maths, i quit after C2 lol. Couldnt stand another year of it at college.

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