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Popular >

-4cos(pi/3)

Solution

- 4 cos (\frac{π}{3})

Solution

- 2

Solution steps

- 4 cos (\frac{π}{3})

Use the following trivial identity:

cos (\frac{π}{3}) = \frac{1}{2}

= - 4 \cdot \frac{1}{2}

Simplify

- 4 \cdot \frac{1}{2} : - 2

= - 2

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Frequently Asked Questions (FAQ)

What is the value of -4cos(pi/3) ?
The value of -4cos(pi/3) is -2