What is the general solution for cos(x)= 2/9 ?

The general solution for cos(x)= 2/9 is x=1.34670…+2pin,x=2pi-1.34670…+2pin

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cos(x)= 2/9

cos (x) = \frac{2}{9}

x = 1.34670 \dots + 2 πn, x = 2 π - 1.34670 \dots + 2 πn

Degrees

x = 77.16041 \dots^{\circ} + 36 0^{\circ} n, x = 282.83958 \dots^{\circ} + 36 0^{\circ} n

Solution steps

cos (x) = \frac{2}{9}

Apply trig inverse properties

cos (x) = \frac{2}{9}

General solutions for

cos (x) = \frac{2}{9}

cos (x) = a \Rightarrow x = arccos (a) + 2 πn, x = 2 π - arccos (a) + 2 πn

x = arccos (\frac{2}{9}) + 2 πn, x = 2 π - arccos (\frac{2}{9}) + 2 πn

x = arccos (\frac{2}{9}) + 2 πn, x = 2 π - arccos (\frac{2}{9}) + 2 πn

Show solutions in decimal form

x = 1.34670 \dots + 2 πn, x = 2 π - 1.34670 \dots + 2 πn

x, tan (x) + tan (y) = 1

x, 4 cos (x) cos (y) = 3

sin (x) = 0, 57

4 cos (x) - 8 sin (x) cos (x) = 0

tan (x) - \frac{3}{3} = 0

What is the general solution for cos(x)= 2/9 ?
The general solution for cos(x)= 2/9 is x=1.34670…+2pin,x=2pi-1.34670…+2pin