A) \[\frac{\pi }{2}\]
B) \[\pi \]
C) \[{{\tan }^{-1}}\left( \frac{65}{156} \right)\]
D) \[4{{\tan }^{-1}}(5)\]
Correct Answer: B
Solution :
\[f(x)=2{{\tan }^{-1}}x+\pi -2{{\tan }^{-1}}x\] \[f\left( x \right)=\pi \] \[f\left( 5 \right)=\pi \]You need to login to perform this action.
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