Question

Integrate :-

Answer 1

@Fifciol

Answer 2

\[\int\limits \cos^3xdx=\int\limits \cos^2xcosxdx=\int\limits (1-\sin^2x)cosxdx \]
\[u=sinx \rightarrow du=cosxdx\]\[\int\limits (1-u^2)du=u-\frac{ u^3}{ 3 }+C=sinx(1-\frac{ \sin^2x }{ 3 })+C\]

Answer 3

not sir plz

Answer 4

Thank You