Verify the Identity tan(x)csc(x)cos(x)=1

$\tan (x) \csc (x) \cos (x) = 1$

Start on the left side.

$\tan (x) \csc (x) \cos (x)$

Convert to sines and cosines.

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Write $\tan (x)$ in sines and cosines using the quotient identity.

$\frac{\sin (x)}{\cos (x)} \csc (x) \cos (x)$

Apply the reciprocal identity to $\csc (x)$ .

$\frac{\sin (x)}{\cos (x)} \cdot \frac{1}{\sin (x)} \cos (x)$

Simplify.

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Cancel the common factor of $\sin (x)$ .

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Cancel the common factor.

$\frac{\sin (x)}{\cos (x)} \cdot \frac{1}{\sin (x)} \cos (x)$

Rewrite the expression.

$\frac{1}{\cos (x)} \cos (x)$

Cancel the common factor of $\cos (x)$ .

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Cancel the common factor.

$\frac{1}{\cos (x)} \cos (x)$

Rewrite the expression.

$1$

Because the two sides have been shown to be equivalent, the equation is an identity.

$\tan (x) \csc (x) \cos (x) = 1$ is an identity

Verify the Identity tan(x)csc(x)cos(x)=1

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