Debarshi Banerjee posted an Question
September 09, 2020 • 05:42 am 10 points
  • IIT JAM
  • Mathematics (MA)

Show the limit is 2/π

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  • Srinath

    Replace the cos(π/(2^k)) terms by [sin(2*(π/(2^k))]/2sin(π/(2^k)). You can evaluate the limit then. If you have doubts, tell me.

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