What is the general solution for cos(x)=0.1 ?

The general solution for cos(x)=0.1 is x=1.47062…+2pin,x=2pi-1.47062…+2pin

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cos(x)=0.1

cos (x) = 0.1

x = 1.47062 \dots + 2 πn, x = 2 π - 1.47062 \dots + 2 πn

Solution steps

cos (x) = 0.1

Apply trig inverse properties

x = arccos (0.1) + 2 πn, x = 2 π - arccos (0.1) + 2 πn

Show solutions in decimal form

x = 1.47062 \dots + 2 πn, x = 2 π - 1.47062 \dots + 2 πn

3 tan (x) = 2.4568

cos (x) = 1.5

\frac{2}{3} cos (3 θ) = 1, 0 \leq θ \leq 2 π

8 cos (B) + 52 = 0

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

What is the general solution for cos(x)=0.1 ?
The general solution for cos(x)=0.1 is x=1.47062…+2pin,x=2pi-1.47062…+2pin