Question

the derivative of sec(3x) is

Answer 1

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$\frac{d \: \: sec \: 3x}{dx} \\ = sec \: 3x \: . \: tan \: 3x \: \: \frac{d \: 3x}{dx} \\ = 3 \: . \: sec \: 3x. \: tan \: 3x$

Answer 2

Answer :

here is your answer.