Hello, I can't figure this one out. Can someone please help me with this problem?

Evaluate the integral

$\displaystyle

\int \ {(3x + 2y)} dx + {(2x - y)} dy

$

along the stated curve

a.) y = sin((pi*x)/2) from (0,0) to (1,1)

b.) x = y^3 from (0,0) to (1,1)