Please help me with the below problem and needed to be solved correctly and needed answers of the red-colored boxes only...

Verify Stokes' theorem for the helicoid V(r, 0) = (rcose, rsine, @) where (r, 0) lies in the rectangle [0, 1] x [0, x/2], and F is the vector field F = (3z, 5x, 9y). First, compute the surface integral: IM(V x F) . as = fe fe f(r, @)dr de, where a = 0 , b = 1.57 0 , and f(r, 0) = 9 sin(t) -3 cos (t) + 5r (use "t" for theta). Finally, the value of the surface integral is -2.4292036732051 Next compute the line integral on that part of the boundary from (1, 0, 0) to (0, 1, x/2). SoF . dr = fu g(0) de, where 0 b 1.57 , and g(0) = -9t sin(t) + 3 cos-(t) + 5 sin(t) (use "t" for theta)