Question

Calculus 3: simplifying expression

Answer 1

\[
\sin^2x+\cos^2x=1
\]

Answer 2

\[\int_{0}^{\pi}\int_{0}^{a\cos(\theta)} \frac{a}{\sqrt{a^2-r^2}}r dr d\theta\]

Answer 3

pulled out the a, ofc.

Answer 4

oh this one is different trig identity

Answer 5

Wait a moment, did it get subbed in the limit already?

Answer 6

oh nvm i didnt see the r there