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Popular >

5cos(-(2pi)/3)

Solution

5 cos (- \frac{2 π}{3})

Solution

- \frac{5}{2}

+1

Solution steps

5 cos (- \frac{2 π}{3})

Rewrite using trig identities:

cos (- \frac{2 π}{3}) = - \frac{1}{2}

= 5 (- \frac{1}{2})

Simplify

5 (- \frac{1}{2}) : - \frac{5}{2}

= - \frac{5}{2}

Popular Examples

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Frequently Asked Questions (FAQ)

What is the value of 5cos(-(2pi)/3) ?
The value of 5cos(-(2pi)/3) is -5/2