Post a New Question


posted by .

how does

secx(tanx + tan^2x- sec^2x)

simplified to
sec x (tanx -1)?

  • math -

    you should have come across the identity
    sec^2x = tan^2x + 1

    (by dividing each term of sin^2 + cos^2x = 1 by cos^2x )

    sub back in , and you got it

Answer This Question

First Name:
School Subject:

Related Questions

More Related Questions

Post a New Question