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Prove the identity:
1-cos2x/sin2x = 1+tanx/1+cotx

I simplified the RS to tanx.

How do I simplify the rest?

  • math -

    change the LS to
    (1 - (1 - 2sin²x))/(2sinxcosx)
    = 2sin²x/(2sinxcox)
    = sinx/cosx
    = tanx = RS

  • math -

    thanks! I've been trying to get this one for quite awhile. So many options to choose :(

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