integration by parts (1 Viewer)

[ashokkumar]

integrate x^2cosx dx from x = 0 to x = pi/2

 

[kaz1]

do it twice

 

[tommykins]

As above...

and show us what you've done so far so we can lead you into the right path rather than babysit u thru it.

 

[ashokkumar]

i've done the question twice, and both times i got pi^2/4 - 2. But the answers says pi^2/4 + 2. I just wanted to double check here.

 

[kaz1]

i've done the question twice, and both times i got pi^2/4 - 2. But the answers says pi^2/4 + 2. I just wanted to double check here.

The answer is wrong, you're right.

 

[ashokkumar]

awesome. thanks