The functions f and g are integrable and f(x)dx = - 8, f(x)dx = 4, and g(x)dx =2. Use these to complete parts (a) through (f) 2 a. f(x) dx = 0 4 (Simplify your answer.) 2 b. g(x)dx = -2 (Simplify your answer.) 7 C. 2g(x)dx = 4 2 (Simplify your answer.)d. f(x)dx = 12 4 (Simplify your answer.) e. [g(x) - f(x)]dx = - 2 2 (Simplify your answer.) f. [6g(x) - f(x)]dx = 2 (Simplify your answer.)