Katelyn A.
asked 11/26/22
precalculus: Establish the identity.
Establish the identity.
𝑠𝑒𝑐𝜃− 1/sec𝜃 =𝑠𝑖𝑛𝜃 𝑡𝑎𝑛𝜃
Bradford T.
answered 11/26/22
Retired Engineer / Upper level math instructor
secθ - 1/secθ = sinθ tanθ
(sec2θ-1)/secθ
tan2θ cosθ
sin2θ cosθ/cos2θ
sinθ sinθ/cosθ
sinθ tanθ = sinθtanθ
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