What is the general solution for cos(x)=-1/2 ,0<= x<= 2pi ?

The general solution for cos(x)=-1/2 ,0<= x<= 2pi is x=(2pi)/3 ,x=(4pi)/3

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cos(x)=-1/2 ,0<= x<= 2pi

cos (x) = - \frac{1}{2}, 0 \leq x \leq 2 π

x = \frac{2 π}{3}, x = \frac{4 π}{3}

Degrees

x = 12 0^{\circ}, x = 24 0^{\circ}

Solution steps

cos (x) = - \frac{1}{2}, 0 \leq x \leq 2 π

General solutions for

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

cos (x)

periodicity table with

2 πn

cycle:

x 0 \frac{π}{6} \frac{π}{4} \frac{π}{3} \frac{π}{2} \frac{2 π}{3} \frac{3 π}{4} \frac{5 π}{6} cos (x) 1 \frac{3}{2} \frac{2}{2} \frac{1}{2} 0 - \frac{1}{2} - \frac{2}{2} - \frac{3}{2} x π \frac{7 π}{6} \frac{5 π}{4} \frac{4 π}{3} \frac{3 π}{2} \frac{5 π}{3} \frac{7 π}{4} \frac{11 π}{6} cos (x) - 1 - \frac{3}{2} - \frac{2}{2} - \frac{1}{2} 0 \frac{1}{2} \frac{2}{2} \frac{3}{2}

x = \frac{2 π}{3} + 2 πn, x = \frac{4 π}{3} + 2 πn

x = \frac{2 π}{3} + 2 πn, x = \frac{4 π}{3} + 2 πn

Solutions for the range

0 \leq x \leq 2 π

x = \frac{2 π}{3}, x = \frac{4 π}{3}

cot^{2} (θ) + cot (θ) - 20 = 0

cos (2 x) + 2 cos (x) + 1 = 0

sin^{2} (x) + 1 = cos^{2} (x)

arcsin (x) = \frac{π}{2}

sin (θ) = 0.6

What is the general solution for cos(x)=-1/2 ,0<= x<= 2pi ?
The general solution for cos(x)=-1/2 ,0<= x<= 2pi is x=(2pi)/3 ,x=(4pi)/3