What is the general solution for cos(θ)=0.625 ?

The general solution for cos(θ)=0.625 is θ=0.89566…+2pin,θ=2pi-0.89566…+2pin

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cos(θ)=0.625

cos (θ) = 0.625

θ = 0.89566 \dots + 2 πn, θ = 2 π - 0.89566 \dots + 2 πn

Solution steps

cos (θ) = 0.625

Apply trig inverse properties

θ = arccos (0.625) + 2 πn, θ = 2 π - arccos (0.625) + 2 πn

Show solutions in decimal form

θ = 0.89566 \dots + 2 πn, θ = 2 π - 0.89566 \dots + 2 πn

x, sin (x) = 3 cos (x)

x, 1.12 = 0.04 sin (x)

sin (2 x) = - 0.8

cos (2 x - \frac{π}{5}) = 0

cos (a) = sin (a + 3 0^{\circ})

What is the general solution for cos(θ)=0.625 ?
The general solution for cos(θ)=0.625 is θ=0.89566…+2pin,θ=2pi-0.89566…+2pin