Evaluate the following integrals:

∫ sin4 x cos3 x dx

Let


We know the Differentiation of



So,


substitute all in above equation,


∫ sin4 x cos3 x dx =


=


=


=


=


We know, basic integration formula, ∫xⁿ dx = + c for any c≠-1


Hence,


Put back t = sin x


∫ sin4 x cos3 x dx =


1