Trigonometry Examples

$\frac{\tan (x)}{\sec (x)}$

Step 1

Rewrite $\sec (x)$ in terms of sines and cosines.

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

Step 2

Rewrite $\tan (x)$ in terms of sines and cosines.

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

Step 3

Multiply by the reciprocal of the fraction to divide by $\frac{1}{\cos (x)}$ .

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

Step 4

Write $\cos (x)$ as a fraction with denominator $1$ .

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

Step 5

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

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Step 5.1

Cancel the common factor.

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

Step 5.2

Rewrite the expression.

$\sin (x)$