IIT JAM
Vidushi saklani Asked a Question
September 29, 2021 11:10 pmpts 30 pts
  • IIT JAM
  • Physics (PH)

Im not able to understand the last part ..hoe have we got 4 in denominator

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  • Anshum Sharma thankyou
    The average value of cos²x is 1/2 that is why there is 1/4 in the answer.
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