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help with 1 and 2 Given cos 0 = = and 270 ) Given cos 0 sin2 + cos2 0 = I. Prove that: =

help with 1 and 2
Given cos 0 = = and 270

) Given cos 0 sin2 + cos2 0 = I. Prove that: = 7 and 2700 9 3600, find sine and cotO. Use the fact that cos3 9 sin 0 = sine + sin2 9 cos 9 cot Osin2 9

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