ihave problme i want pleas help in the Differentiation and i

qaseem · **Joined:** Tue, 22 May 2012 13:50:48 UTC **Posts:** 1

1)√4-x^2dx ….,

Edit (Shadow): If you really have 12 problems you don't get, you need to talk to your teacher.

Shadow · **Posted:** Tue, 22 May 2012 23:52:19 UTC

qaseem wrote:

1)√4-x^2dx ….,

Edit (Shadow): If you really have 12 problems you don't get, you need to talk to your teacher.

To integrate things of the form $\sqrt{a^2-x^2}$ use the trigonometric substitution $x=2\sin \theta$ so that $dx=2\cos\theta\,d\theta$

S.O.S. Mathematics CyberBoard