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OpenStudy (anonymous):
Trying to work one side to equal the other, (please help prove) : (tan x) / (sin x- cos x) = (sin^2 x + (sin x)(cos x))/ (cos x - 2 cos ^3 x)
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OpenStudy (anonymous):
it's a trig identity
OpenStudy (anonymous):
sin x 1 ---- x---------- = cos x sin x-cos x
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