Basic Calculus

14) What is the derivative of function y=(3x-1) (2x+5)? A. 8x+12 B. 8x-12 C. 12x+13 D. 12x-13 15) What is the derivative of the function f(x) = 2x+5 , 3x -2 A. -19 B. -11 C. 11 D. 19 (3x - 2) (3x- 2) 3x - 2 ) 3x -2} 16) What is the derivative of the function f(x) = secx+3 cscx? A. secx cotx -3cscxtanx C. 3secxcotx-cscrtanx B. secxtanx -3csco cotx D. 3secx tanx - cscrcotx 17) Which of the following is the derivative of the function y = six -1 COS X A. sm x - 1 C CoS' x + sin ' x + sm x COS X COS X B. sm x+1 D cost x + sin * x + six cos* X cost x 18) What is the derivative of the function f(x) = 2x' -3x*+ 4x--5x3 +6x -7? A. 240x -72 C. 40x -36x3 + 24x -10 B. 120x3 - 72x +24 D. 10x* -12x3+ 12x- -10x +6 19) What is the derivative of f(x) = secx + 3cscx? A. secxtanx-3cscxcotx C. 3secxtanx-csexcotx B. secxtanx+3csexcotx D. 3secxtanx+cscxcotx 20) What is the derivative of g(x) = -4x-e* + 5xe* -10e*? A. -4x-ex - 3xe* - 5e* C. -4x-e* - 3xe* + 5e* B. -4x-e* + 3xe* - 5e* D. -4x-e* + 3xe* + 5ex