Which of the following trigonometric function derivatives is correct? – McqOptions

MCQOPTIONS

1.	Which of the following trigonometric function derivatives is correct?
A.	\(\frac{d(sinx)}{dx}=-cosx\)
B.	\(\frac{d(secx)}{dx}=secxtanx\)
C.	\(\frac{d(tanx)}{dx}=cot^2 x\)
D.	\(\frac{d(cosx)}{dx}=sinx\)
Answer» C. \(\frac{d(tanx)}{dx}=cot^2 x\)

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