What is the derivative of the function f(x) = etan x + ln(sec x) – e – McqOptions

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1.	What is the derivative of the function f(x) = etan x + ln(sec x) – eln x at \({\rm{x}} = \frac{{\rm{\pi }}}{4}?\)
A.	e/2
B.	e
C.	2e
D.	4e
Answer» D. 4e

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