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OpenStudy (anonymous):
Complete the identity. Sin^2 (x) + Tan^2 (x) + Cos^2 (x) = ? A) Sec^2 (x) B) Tan^2 (x) C) Cos^3 (x) D) Sin (x) Please help i need answer for this fast.
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OpenStudy (anonymous):
1 +tan^2 x = sec^2 x
OpenStudy (anonymous):
it's A
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