What is the general solution for cos(θ)= 5/(5sqrt(2)) ?

The general solution for cos(θ)= 5/(5sqrt(2)) is θ= pi/4+2pin,θ=(7pi)/4+2pin

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cos(θ)= 5/(5sqrt(2))

cos (θ) = \frac{5}{5 2}

θ = \frac{π}{4} + 2 πn, θ = \frac{7 π}{4} + 2 πn

Solution steps

cos (θ) = \frac{5}{5 2}

Simplify

\frac{5}{5 2} : \frac{2}{2}

General solutions for

cos (θ) = \frac{2}{2}

θ = \frac{π}{4} + 2 πn, θ = \frac{7 π}{4} + 2 πn

arccos (x) = arcsin (\frac{9}{41})

x, - y sin (x) = 0

2 sin (\frac{x}{2} + \frac{π}{3}) = 3

x, 4 sin^{4} (x) - 8 sin^{2} (x) + 3 = 0

3 + 3 sin (θ) = 3 - 3 sin (θ)

What is the general solution for cos(θ)= 5/(5sqrt(2)) ?
The general solution for cos(θ)= 5/(5sqrt(2)) is θ= pi/4+2pin,θ=(7pi)/4+2pin