6. Find the area of the region that lies under y = e" and above y = 1 for -2 s x s 0 7. Let f(x) = F'(x). For F(x) = 3x' + 2x + x + 2In(x), a = 1, b =2, write the integral ff(x)dx and evaluate it using the Fundamental Theorem of Calculus. 8. Let ff(x)dx = 8, S(f(x)) dx - 12, fg(t)dt=2 and f(g(t) ) dt = 3. Find (a). s( f ( ))'dx - ( ff ( )dx) , (b). flag ( x ) + ( caf (x) " ) dx 9. If fif (x)dx = m and ff(x)dx =n, find ff (x) dx