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5-90.
Fundamental Pythagorean Identities:
sin2θ + cos2θ = 1
1 + tan2θ = sec2θ
1 + cot2θ = csc2θ
Change all terms to sine and cosine.
Fundamental Pythagorean Identities:
sin2θ + cos2θ = 1
1 + tan2θ = sec2θ
1 + cot2θ = csc2θ
Change all terms to sine and cosine.