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Mathematics 15 Online
OpenStudy (anonymous):

trying to verify using trig identities... 1/1-cosA + 1/1+cosA = 2+2cot^2 A ? Went this way for the R.H.S... 1+ Cos^2a/Sin^2a + 1 + Cos^2a/Sin^2a ? Am I setting it up wrong?

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