What is the general solution for 7-4cos(θ)=7 ?

The general solution for 7-4cos(θ)=7 is θ= pi/2+2pin,θ=(3pi)/2+2pin

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7-4cos(θ)=7

7 - 4 cos (θ) = 7

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

Solution steps

7 - 4 cos (θ) = 7

Subtract

7

from both sides

7 - 4 cos (θ) - 7 = 7 - 7

Simplify

- 4 cos (θ) = 0

Divide both sides by

- 4

cos (θ) = 0

General solutions for

cos (θ) = 0

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

t, x = tan^{2} (t)

sin (x) = 0.8246

cos^{3} (x) + cos (x) = 0

sin (θ) = \frac{1}{3}, cos (θ) = \frac{2 2}{3}

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

What is the general solution for 7-4cos(θ)=7 ?
The general solution for 7-4cos(θ)=7 is θ= pi/2+2pin,θ=(3pi)/2+2pin