IIT JAM
Rudhreswaran g Asked a Question
February 2, 2021 1:56 pmpts 30 pts
  • IIT JAM
  • Mathematics (MA)

How this expression as been changed

  • 2 Answer(s)
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  • Satpal singh Best Answer
    if you are safisfied with this answer accept this as best answer
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  • Satpal singh
    half angle formula used here . visit this link. https://www.intmath.com/analytic-trigonometry/4-half-angle-formulas.php
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  • Satpal singh thankyou
    see this
    • cropped3858278815027458631.jpg
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