If f(x)= x then write the value of f(x)+f( -x). - Vidyadip

Question

If $f(x)=\tan x$ then write the value of $f(x)+f(\pi-x)$.

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Answer

$\begin{array}{l}f(x)=\tan x, f(\pi-x)=\tan (\pi-x)=-\tan x \\ \therefore f(x)+f(\pi-x)=\tan x-\tan x=0\end{array}$

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