What is the general solution for cos(θ)= 1/2 ,0<= θ<= 4pi ?

The general solution for cos(θ)= 1/2 ,0<= θ<= 4pi is θ= pi/3 ,θ=(5pi)/3 ,θ=(7pi)/3 ,θ=(11pi)/3

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cos(θ)= 1/2 ,0<= θ<= 4pi

cos (θ) = \frac{1}{2}, 0 \leq θ \leq 4 π

θ = \frac{π}{3}, θ = \frac{5 π}{3}, θ = \frac{7 π}{3}, θ = \frac{11 π}{3}

Degrees

θ = 6 0^{\circ}, θ = 30 0^{\circ}, θ = 42 0^{\circ}, θ = 66 0^{\circ}

Solution steps

cos (θ) = \frac{1}{2}, 0 \leq θ \leq 4 π

General solutions for

cos (θ) = \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}

θ = \frac{π}{3} + 2 πn, θ = \frac{5 π}{3} + 2 πn

θ = \frac{π}{3} + 2 πn, θ = \frac{5 π}{3} + 2 πn

Solutions for the range

0 \leq θ \leq 4 π

θ = \frac{π}{3}, θ = \frac{5 π}{3}, θ = \frac{7 π}{3}, θ = \frac{11 π}{3}

sinh^{2} (x) = 2 sinh (x) cosh (x)

(cos (x) - 1) (sin (x) - 1) = 0

sec (θ) = \frac{3 2}{4}

9 cos^{2} (x) - 18 cos (x) + 5 = 0

tan (θ) = \frac{7}{24}, sin^{2} (θ) + cos^{2} (θ)

What is the general solution for cos(θ)= 1/2 ,0<= θ<= 4pi ?
The general solution for cos(θ)= 1/2 ,0<= θ<= 4pi is θ= pi/3 ,θ=(5pi)/3 ,θ=(7pi)/3 ,θ=(11pi)/3