Simple math question

XBoxLPU · Apr 13, 2005

What is the indefinite integral of (3x-2) ^ 6 ?

I am getting (3x-2) ^ 7 over 7. Book is showing it over 21???

MAME · Apr 13, 2005

rudeguy · Apr 13, 2005

XBoxLPU · Apr 13, 2005

Originally posted by: rudeguy
http://forums.anandtech.com/messageview...atid=42&threadid=1567972&enterthread=y

I have the book's answer but I think its a misprint

Geesh

glorifiedg790 · Apr 13, 2005

Originally posted by: XBoxLPU
What is the indefinite integral of (3x-2) ^ 6 ?

uhhh....simple? LOL

chuckywang · Apr 13, 2005

(3x-6)^7/21 + C

MetalMat · Apr 13, 2005

XBoxLPU · Apr 13, 2005

Where does the 21 come from?

MetalMat · Apr 13, 2005

wait my bad, one sec

MetalMat · Apr 13, 2005

That right? Man I just htink I am dumb right now, I need to review my calc 2

chuckywang · Apr 13, 2005

Originally posted by: XBoxLPU
Where does the 21 come from?

From the chain rule

archcommus · Apr 13, 2005

u=3x-2
du=3 dx
1/3 du = dx

1/3 S u^6 du
1/3 u^7/7
(1/3)((3x-2)/7)
(3x-2)/21

/thread

XBoxLPU · Apr 13, 2005

Originally posted by: archcommus
u=3x-2
du=3 dx
1/3 du = dx

1/3 S u^6 du
1/3 u^7/7
(1/3) (3x-2)/7
(3x-2)/21

/thread

Thank you!

And thanks cw

XBoxLPU · Apr 13, 2005

uhhh....simple? LOL

They get more complicated