Question

eval the integral using multiple substitutions
integral of sin sqrt t/[sqrt t cos^3(sqrt t)]

Answer 1

let cos(sqrt t) = z
then -(sin(sqrt t))((2sqrt t) dt =dz
then after substitution the question takes the form (-2dz/(z^3))
on integration 1/(z^2) +c
or 1(cos(sqrt t)^2) +c

Answer 2

thanks

Answer 3

welcome