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OpenStudy (anonymous):
how do you prove tan x times sin x = sec x - cos x
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OpenStudy (anonymous):
OpenStudy (anonymous):
ummm under "we have" whats in the middle of sin(square) x and cos(square ) x = 1..... i cant tell if thats an plus sign or multiplication sign
OpenStudy (anonymous):
\[\sin ^{2}x +\cos ^{2}x\]
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