definite-integral

Question: The value of $\int_{0}^{\pi /4}{\frac{1+\tan x}{1-\tan x}\,dx}$ is

1) $-\frac{1}{2}\log 2$

2) $\frac{1}{4}\log 2$

3) $\frac{1}{3}\log 2$

4) None of these

Solution:

Explanation: No Explanation

Fundamental definite integration Definite integration by substitution

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