# Problem tanA+sinA=m,tanA=sinA=n find msquare -nsquare

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M^2-n^2 = (tanA+sinA)^2-(tanA-sinA)^2 = (tanA^2+2tanAsinA+sinA^2) - (tanA^2-2tanAsinA+sinA^2) = 4tanAsinA

Posted on Feb 03, 2009

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