What is cos(x+(2pi)/3) ?

The solution to cos(x+(2pi)/3) is -1/2 cos(x)-(sqrt(3))/2 sin(x)

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simplify cos(x+(2pi)/3)

simplify

cos (x + \frac{2 π}{3})

- \frac{1}{2} cos (x) - \frac{3}{2} sin (x)

Solution steps

cos (x + \frac{2 π}{3})

Rewrite using trig identities

= - \frac{1}{2} cos (x) - \frac{3}{2} sin (x)

sin (3 x + π)

cos (45 0^{\circ} + x)

2 cos (x + \frac{π}{6})

sin^{2} (- t)

csc (π - x)

What is cos(x+(2pi)/3) ?
The solution to cos(x+(2pi)/3) is -1/2 cos(x)-(sqrt(3))/2 sin(x)