Evaluate 20cos(60)

$20 \cos (60)$

Step 1

The exact value of $\cos (60)$ is $\frac{1}{2}$ .

$20 (\frac{1}{2})$

Step 2

Cancel the common factor of $2$ .

Factor $2$ out of $20$ .

$2 (10) \frac{1}{2}$

Cancel the common factor.

$2 \cdot 10 \frac{1}{2}$

Rewrite the expression.

$10$

$10$

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