Basic calculus

7) Given by f (x) = 3x*+ 2 and g(x)=Vx, what is f'(x) + g'(x)? A. 12x3 + Vx B. 12x3 + -x 2 C. 12x3 + - X2 D. 12x3 + x 8) What is the derivative of f(x) = (2x2 + 1)(x2 - x)? A. 8x3 - 6x2 + 2x - 1 C. 8x3 - 6x2 - 2x - 1 B. 8x3 + 6x2 + 2x - 1 D. 8x3 - 6x2 + 2x + 1 9) What is the derivative of h(x) = . 7 A. 8 B. 8 C. D. - 8 8 10) Which of the following is the derivative of the trigonometric function y = cosxsinx? A. -sin2x - cos2x B. -sin2x + cos2x C. sin2x - cos2x D. sin x + cos2x 11) What is the derivative of the exponential function y = 2e*? A. ex B. C. 2ex2 D. 2e* 2 12) Given by f(x)=x3 + x and g(x)=2vx, what f'x - g'x? A. 3x2 + 2x - B. 3x2 + 1 VX C. 3x2 - VX D. 3x2 + Vx 13) Which of the following expression is the derivative of sine? A. COSX B. -cscxcotx C. secxtanx D. -sinx