Answer to Question #139638 in Calculus for Timmy

Question #139638

if y = sin3x , then y’ is

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

Expert's answer

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

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