If f(x) = 3x + 7, which of these is the inverse of f(x)? O A. 8-'(x) = *-7
3
O B. "(x) = X +7
x|
3
O C. &-'(x) = Ž -7
=
O D. 8'(x) = x+7
3

Use stokes' theorem to evaluate c f · dr where c is oriented counterclockwise as viewed from above. f(x, y, z) = xyi + 5zj + 7yk, c is the curve of intersection of the plane x + z = 8 and the cylinder x2 + y2 = 81.