Precalculus Examples

$4 \sin (x) \cos (x) \csc (x)$

Step 1

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

$4 \sin (x) \cos (x) \frac{1}{\sin (x)}$

Step 2

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

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Step 2.1

Factor $\sin (x)$ out of $4 \sin (x) \cos (x)$ .

$\sin (x) (4 \cos (x)) \frac{1}{\sin (x)}$

Step 2.2

Cancel the common factor.

$\sin (x) (4 \cos (x)) \frac{1}{\sin (x)}$

Step 2.3

Rewrite the expression.

$4 \cos (x)$

$4 \cos (x)$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$