What is the general solution for sin(θ/2)=(sqrt(3))/2 ?

The general solution for sin(θ/2)=(sqrt(3))/2 is θ=(2pi)/3+4pin,θ=(4pi)/3+4pin

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sin(θ/2)=(sqrt(3))/2

Solution

sin (\frac{θ}{2}) = \frac{3}{2}

Solution

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

Degrees

θ = 12 0^{\circ} + 72 0^{\circ} n, θ = 24 0^{\circ} + 72 0^{\circ} n

Solution steps

sin (\frac{θ}{2}) = \frac{3}{2}

General solutions for

sin (\frac{θ}{2}) = \frac{3}{2}

sin (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} sin (x) 0 \frac{1}{2} \frac{2}{2} \frac{3}{2} 1 \frac{3}{2} \frac{2}{2} \frac{1}{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} sin (x) 0 - \frac{1}{2} - \frac{2}{2} - \frac{3}{2} - 1 - \frac{3}{2} - \frac{2}{2} - \frac{1}{2}

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

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

Solve

\frac{θ}{2} = \frac{π}{3} + 2 πn : θ = \frac{2 π}{3} + 4 πn

\frac{θ}{2} = \frac{π}{3} + 2 πn

Multiply both sides by

2

\frac{θ}{2} = \frac{π}{3} + 2 πn

Multiply both sides by

2

\frac{2 θ}{2} = 2 \cdot \frac{π}{3} + 2 \cdot 2 πn

Simplify

\frac{2 θ}{2} = 2 \cdot \frac{π}{3} + 2 \cdot 2 πn

Simplify

\frac{2 θ}{2} : θ

\frac{2 θ}{2}

Divide the numbers:

\frac{2}{2} = 1

= θ

Simplify

2 \cdot \frac{π}{3} + 2 \cdot 2 πn : \frac{2 π}{3} + 4 πn

2 \cdot \frac{π}{3} + 2 \cdot 2 πn

Multiply

2 \cdot \frac{π}{3} : \frac{2 π}{3}

2 \cdot \frac{π}{3}

Multiply fractions:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= \frac{π 2}{3}

= \frac{2 π}{3} + 2 \cdot 2 πn

Multiply the numbers:

2 \cdot 2 = 4

= \frac{2 π}{3} + 4 πn

θ = \frac{2 π}{3} + 4 πn

θ = \frac{2 π}{3} + 4 πn

θ = \frac{2 π}{3} + 4 πn

Solve

\frac{θ}{2} = \frac{2 π}{3} + 2 πn : θ = \frac{4 π}{3} + 4 πn

\frac{θ}{2} = \frac{2 π}{3} + 2 πn

Multiply both sides by

2

\frac{θ}{2} = \frac{2 π}{3} + 2 πn

Multiply both sides by

2

\frac{2 θ}{2} = 2 \cdot \frac{2 π}{3} + 2 \cdot 2 πn

Simplify

\frac{2 θ}{2} = 2 \cdot \frac{2 π}{3} + 2 \cdot 2 πn

Simplify

\frac{2 θ}{2} : θ

\frac{2 θ}{2}

Divide the numbers:

\frac{2}{2} = 1

= θ

Simplify

2 \cdot \frac{2 π}{3} + 2 \cdot 2 πn : \frac{4 π}{3} + 4 πn

2 \cdot \frac{2 π}{3} + 2 \cdot 2 πn

2 \cdot \frac{2 π}{3} = \frac{4 π}{3}

2 \cdot \frac{2 π}{3}

Multiply fractions:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= \frac{2 π 2}{3}

Multiply the numbers:

2 \cdot 2 = 4

= \frac{4 π}{3}

2 \cdot 2 πn = 4 πn

2 \cdot 2 πn

Multiply the numbers:

2 \cdot 2 = 4

= 4 πn

= \frac{4 π}{3} + 4 πn

θ = \frac{4 π}{3} + 4 πn

θ = \frac{4 π}{3} + 4 πn

θ = \frac{4 π}{3} + 4 πn

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

Popular Examples

cos(θ)=-2

cos (θ) = - 2

cos(x)=-pi/3

cos (x) = - \frac{π}{3}

tan(θ)=-sqrt(2)sin(θ)

tan (θ) = - 2 sin (θ)

2sin(x)=2cos(2x)

2 sin (x) = 2 cos (2 x)

4sin(x/2)+2cos(x)=3

4 sin (\frac{x}{2}) + 2 cos (x) = 3

Frequently Asked Questions (FAQ)

What is the general solution for sin(θ/2)=(sqrt(3))/2 ?
The general solution for sin(θ/2)=(sqrt(3))/2 is θ=(2pi)/3+4pin,θ=(4pi)/3+4pin