Sanchari posted an Question
May 04, 2020 • 16:31 pm 30 points
  • CSIR NET
  • Physical Sciences

Tifr 2018 : mathematical methods

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    Chandra prakash best-answer

    As you know that , integration of del(x-n) is equal to one, ,,, now look at the optiones,,,,,, Cosπ =-1,,, so the whole series becomes 1+ zero becos all the cos terms cancell outs each other so thats how we get it,,,, i hope u understood it

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