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Verify the basic identity. What is the domain of the validity? cot x= cos x csc x

Verify the basic identity. What is the domain of the validity? cot x= cos x csc x
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Verify the basic identity. What is the domain of the validity?

cot x= cos x csc x

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User Marshall X
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Expand and simplify LHS - Apply identity sin^2x+cos^2x = 1 To verify: (cotx - cscx)(cosx+1) =-sinx LHS=(cosx/sinx - 1/sinx)(cosx+1)
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User Yale
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