integration using trig substitutions? :S (1 Viewer)

[ashokkumar]

Evaluate the integral x^2/sqrt(4-x^2) dx from x = -1 to x = sqrt3 using the substitution x = 2sin(theta).

 

[Affinity]

have you tried any of these intrgation question you posted ;P?

 

[tommykins]

have you tried any of these intrgation question you posted ;P?

^

Please make sure you do, show us some working out. We will help but it doesn't help you at all to blindly give you the answers.

 

[ashokkumar]

i've attempted all the questions i've posted several times. But i keep getting the same answers (which are different to the answers in the textbook.) So i normally just post them up here to double check. Normally it turns out that the textbook is in fact wrong.

(BTW I'm using the Phoenix Practice Questions By Topic)

Thanks again for the help guys.

 

[Jonneeh]

im getting

pi+sqrt3 all over 2

whats the answer ><"

 

[fullonoob]

integrate from -pi/6 to pi/3 4sin^2@
use identity sin^2x = (1-cos2x)/2 to modify
you shall get teh answer pi - root 3

 

[shaon0]

integrate from -pi/6 to pi/3 4sin^2@
use identity sin^2x = (1-cos2x)/2 to modify
you shall get teh answer pi - root 3

wat?