whoops.. welll, then just simplify it? :) haha.
secθ-cosθ is not an identity.
secθ-cosθ = secθ(1-cos^2θ) = secθ sin^2θ = tanθ sinθ
secθ-cosθ
secθ = 1/cosθ so...
1/cosθ - cosθ
(1 - cos^2θ)/cosθ
sin^2θ/cosθ
(sinθ/cosθ) * (1/cosθ)
tanθsecθ
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secθ-cosθ is not an identity.
secθ-cosθ = secθ(1-cos^2θ) = secθ sin^2θ = tanθ sinθ
secθ-cosθ
secθ = 1/cosθ so...
1/cosθ - cosθ
(1 - cos^2θ)/cosθ
sin^2θ/cosθ
(sinθ/cosθ) * (1/cosθ)
tanθsecθ