integral from 0 to pi where f(x)= 5sinx if 0<or equal to x<pi/2, 3cosx if pi/2<or equal to x<pi

Question

definite integral from 0 to pi where f(x)= (5sin(x) if 0 is less than or equal to x is less than pi/2) and (3cos(x) if pi/2 is less than or equal to x is less than pi)

Answer 1

answer this problem:Find the DEFINISI INTEGRAL FOURIER  representation of the function ,f(x)={0 ,x<0 }
f(x)=pi/2 x=0,f(x)=pi*exp^x x>0