What is the general solution for 8cos(x)-4sqrt(2)=0 ?

The general solution for 8cos(x)-4sqrt(2)=0 is x= pi/4+2pin,x=(7pi)/4+2pin

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8cos(x)-4sqrt(2)=0

8 cos (x) - 42 = 0

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

Solution steps

8 cos (x) - 42 = 0

Move

42

to the right side

8 cos (x) = 42

Divide both sides by

8

cos (x) = \frac{2}{2}

General solutions for

cos (x) = \frac{2}{2}

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

3 csc (x) - 23 = 0

x, arccos (x) = \frac{1}{2}

cos (2 x) = \frac{1}{5}

sin^{2} (θ) - \frac{1}{2} = 0

sin (x) - sin (x) tan (x) = 0

What is the general solution for 8cos(x)-4sqrt(2)=0 ?
The general solution for 8cos(x)-4sqrt(2)=0 is x= pi/4+2pin,x=(7pi)/4+2pin