Post a New Question

math

posted by on .

cotx+tan2x=cotxsec2x
prove

  • math - ,

    cosx/sinx + 2sinxcosx/cos2x
    = (cosxcos2x + 2sin^2(x) cosx)/(sinxcos2x)
    = cotxsec2x (cos2x + 2sin^2(x))
    = cotx sec2x (1-2sin^2(x) + 2sin^2(x))
    = cotx sec2x

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question