What is the general solution for cos(θ)= 3/8 ?

The general solution for cos(θ)= 3/8 is θ=1.18639…+2pin,θ=2pi-1.18639…+2pin

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cos(θ)= 3/8

cos (θ) = \frac{3}{8}

θ = 1.18639 \dots + 2 πn, θ = 2 π - 1.18639 \dots + 2 πn

Solution steps

cos (θ) = \frac{3}{8}

Apply trig inverse properties

θ = arccos (\frac{3}{8}) + 2 πn, θ = 2 π - arccos (\frac{3}{8}) + 2 πn

Show solutions in decimal form

θ = 1.18639 \dots + 2 πn, θ = 2 π - 1.18639 \dots + 2 πn

arccos (x) - arcsin (x) = arccos (\frac{3}{2})

- 5 tan (θ) - 12 = tan (θ) - 8

\frac{1}{4} sin (4 t) = 0

csc (x) + 2 = 0, (0, 2 π)

2 cos (4 x) = 2 cos^{2} (2 x) - sin (2 x) - 1

What is the general solution for cos(θ)= 3/8 ?
The general solution for cos(θ)= 3/8 is θ=1.18639…+2pin,θ=2pi-1.18639…+2pin