Question Detail
Question
Evaluate the second derivative of y = tan(3x) with respect to x
Correct Answer
Option A is the correct answer.
Detailed Explanation
y'=3sec²3x. Differentiating again: y''=3·2sec3x·(3sec3x tan3x)=18sec²3x·tan3x.
Hint
Differentiate tan(3x) once, then differentiate the resulting sec² term using the chain rule again.