savannap8679 savannap8679

29-06-2022
Mathematics

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which of the following are identities? check all that apply A. cot^2x+1=csc^2x B.tan^2=1-sec^2x C.sin2^x=1=cos^2x D.sin^2x+cos^2x=1

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mjhsiao246495 mjhsiao246495

29-06-2022

Sin^2x+cos^x=1 from there you can derive the other two identities by dividing by cos and sin
The answer is A and D

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