Recall the formula for integration by parts, which states that if f and g are differentiable functions, then the following holds.
A. ∫f(x)g(x)dx = f(x)∫g(x)dx
B. ∫f(x)g(x)dx = f(x)g(x) - ∫g(x)f'(x)dx
C. ∫f(x)g(x)dx = f'(x)g(x) - ∫f(x)g'(x)dx
D. ∫f(x)g(x)dx = ∫f'(x)g'(x)dx
