What is the value of (-cos(pi/3))-(-cos(0)) ?

The value of (-cos(pi/3))-(-cos(0)) is 1/2

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(-cos(pi/3))-(-cos(0))

(- cos (\frac{π}{3})) - (- cos (0))

\frac{1}{2}

Solution steps

(- cos (\frac{π}{3})) - (- cos (0))

= - cos (\frac{π}{3}) - (- cos (0))

Use the following trivial identity:

cos (\frac{π}{3}) = \frac{1}{2}

Use the following trivial identity:

cos (0) = 1

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

Simplify

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

= \frac{1}{2}

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sin (2 (0)) (0)

What is the value of (-cos(pi/3))-(-cos(0)) ?
The value of (-cos(pi/3))-(-cos(0)) is 1/2