Basic Math Examples

cos (\frac{- 5 \sqrt{3}}{2})

$\cos (\frac{- 5 \sqrt{3}}{2})$

Step 1

Move the negative in front of the fraction.

cos (- \frac{5 \sqrt{3}}{2})

$\cos (- \frac{5 \sqrt{3}}{2})$

Step 2

Since

cos (- \frac{5 \sqrt{3}}{2})

$\cos (- \frac{5 \sqrt{3}}{2})$ is an even function, rewrite

cos (- \frac{5 \sqrt{3}}{2})

$\cos (- \frac{5 \sqrt{3}}{2})$ as

cos (\frac{5 \sqrt{3}}{2})

$\cos (\frac{5 \sqrt{3}}{2})$ .

cos (\frac{5 \sqrt{3}}{2})

$\cos (\frac{5 \sqrt{3}}{2})$

Step 3

The result can be shown in multiple forms.

Exact Form:

cos (\frac{5 \sqrt{3}}{2})

$\cos (\frac{5 \sqrt{3}}{2})$

Decimal Form:

- 0.37302012 \dots

$- 0.37302012 \dots$