What is 2cos((2pix)/3+pi)-2 ?

The solution to 2cos((2pix)/3+pi)-2 is -2cos((2pix)/3)-2

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simplify 2cos((2pix)/3+pi)-2

simplify

2 cos (\frac{2 π x}{3} + π) - 2

- 2 cos (\frac{2 π x}{3}) - 2

Solution steps

2 cos (\frac{2 π x}{3} + π) - 2

Rewrite using trig identities

= 2 (- cos (\frac{2 π x}{3})) - 2

Remove parentheses:

(- a) = - a

= - 2 cos (\frac{2 π x}{3}) - 2

a tan (- 0.533)

sin (2 π x) - sin (- 2 π x)

cot (4 k - π)

(1 - sin^{2} (x))

sin (sin^{- 2} (x))

What is 2cos((2pix)/3+pi)-2 ?
The solution to 2cos((2pix)/3+pi)-2 is -2cos((2pix)/3)-2