What is the general solution for cos(x)=0.818 ?

The general solution for cos(x)=0.818 is x=0.61287…+2pin,x=2pi-0.61287…+2pin

cos(x)=0.818

cos (x) = 0.818

x = 0.61287 \dots + 2 πn, x = 2 π - 0.61287 \dots + 2 πn

Degrees

x = 35.11491 \dots^{\circ} + 36 0^{\circ} n, x = 324.88508 \dots^{\circ} + 36 0^{\circ} n

Solution steps

cos (x) = 0.818

Apply trig inverse properties

cos (x) = 0.818

General solutions for

cos (x) = 0.818

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

x = arccos (0.818) + 2 πn, x = 2 π - arccos (0.818) + 2 πn

x = arccos (0.818) + 2 πn, x = 2 π - arccos (0.818) + 2 πn

Show solutions in decimal form

x = 0.61287 \dots + 2 πn, x = 2 π - 0.61287 \dots + 2 πn

sin (x) = \frac{150}{212.6} (sin (11 5^{\circ}))

16 cos (2 θ) - 9 = 0

\frac{sin ^{2} ( θ ) - 2 sin ( θ ) + 1}{sin ( θ ) - 1} = - 1

w, 100 cos (10 w) = 50

cos (θ) = \frac{8}{25}

What is the general solution for cos(x)=0.818 ?
The general solution for cos(x)=0.818 is x=0.61287…+2pin,x=2pi-0.61287…+2pin