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• TRIGONOMETRY FORMULAS TO BE USED. # 1+cos 2x= 2 cos^2x .....(1) # sin2x= 2sinx cosx ......(2) LHS (1+cos2x)/sin2x 2cos^2x/ 2sinx cosx .....[from (1) &(2)] cosx/sinx cotx=RHS Hence, proved. Hope it helps!

  in how do i verify (1+cos2x)/sin2x=cotx ? Comment by msci June 2021
• TRIGONOMETRY FORMULAS TO BE USED. # 1+cos 2x= 2 cos^2x .....(1) # sin2x= 2sinx cosx ......(2) LHS (1+cos2x)/sin2x 2cos^2x/ 2sinx cosx .....[from (1) &(2)] cosx/sinx cotx=RHS Hence, proved. Hope it helps!

  in how do i verify (1+cos2x)/sin2x=cotx ? Comment by msci May 2021