Answer to Question #139638 in Calculus for Timmy

Question

if y = sin3x , then y’ is

Select one:
A. (cosxsinx)/3
B. none of the option mentioned
C. 3cosx sin2x
D. 3cos2x

Answer 1

The answer to this question is B. Using Chain rule, the derivative of sin (3x) is 3cos3x which is not among the options.