1.integral cos(x)sqrt(sin(x))dx. upper limit pi and lower limit 0

Question

2.integral 1/sqrt(x)(sqrt(x) +1)^2. Upper limit is 4 and lower limit is 1.

Answer 1

1. let u=sinx
then du = cosx dx
and you have ∫ u^(1/2) du

2. let u = √x+1
then du = 1/(2√x)
and you have ∫2u^2 du