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Proof this identities. (a) sin x cot x = cos x
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Change cotx to cosx/sinx (an identity)and then do the multiplication by sinx.
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Hello all,
In our math class, we are practicing the trigonometric identities (i.e., sin^2(x)+cos^2(x)=1 or cot(x)=cos(x)/sin(x).
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I do not understand these problems. :S
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