KVPY #21

Geometry Level 4

Let \( n\) be a positive integer such that

\[\large \sin \dfrac{π}{2n} + \cos \dfrac{π}{2n} = \dfrac{ \sqrt{n} }{2}\]

Then find the value of \( n\).


  • For more KVPY practice questions try my set 1
  • For JEE problems try my set 2
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