Integral Calculus Question 319

Question: The value of $ \int_{{}}^{{}}{\cot x\ dx} $ is

[RPET 1995]

Options:

A) $ \log \cos x+c $

B) $ \log \tan x+c $

C) $ \log \sin x+c $

D) $ \log \sec x+c $

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Answer:

Correct Answer: C

Solution:

It is obvious.