1.

What is the value of \(\frac{d}{dx}\) (sin⁡ x tan⁡ x)?

A. sin⁡ x + tan⁡ x sec⁡ x
B. cos⁡ x + tan⁡ x sec⁡ x
C. sin⁡ x + tan⁡ x
D. sin⁡ x + tan⁡ x sec2⁡x
Answer» B.


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