Asked by Blake
Prove 1+sec2x / tan2x = cotx
Answers
Answered by
Steve
(cos2x+1)/cos2x / sin2x/cos2x
(cos2x+1)/sin2x
(2cos^2 x - 1 + 1)/(2sinx cosx)
2cos^2 x/(2sinx cosx)
cosx/sinx
cotx
(cos2x+1)/sin2x
(2cos^2 x - 1 + 1)/(2sinx cosx)
2cos^2 x/(2sinx cosx)
cosx/sinx
cotx
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