Mathematics

if $$\int _{ 0 }^{ 2\pi  }{ x\quad f\left( sec\quad x \right) dx=A\int _{ 0 }^{ \pi  }{ f\left( secx \right) dx,then\quad A\quad equals }  } $$


ANSWER

$$\frac { \pi }{ 2 } $$


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Single Correct Medium Published on 17th 09, 2020
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