What is the general solution for cos(x)=0.71 ?

The general solution for cos(x)=0.71 is x=0.78129…+2pin,x=2pi-0.78129…+2pin

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cos(x)=0.71

cos (x) = 0.71

x = 0.78129 \dots + 2 πn, x = 2 π - 0.78129 \dots + 2 πn

Solution steps

cos (x) = 0.71

Apply trig inverse properties

x = arccos (0.71) + 2 πn, x = 2 π - arccos (0.71) + 2 πn

Show solutions in decimal form

x = 0.78129 \dots + 2 πn, x = 2 π - 0.78129 \dots + 2 πn

cos (x) = 0.28

2 sin (θ) - 3 = - 2

cos (x) + 2 sec (x) = - 3

2 sin^{2} (x) = 1, 0 \leq x \leq 2 π

0 = \frac{1}{5} sin (5 t)

What is the general solution for cos(x)=0.71 ?
The general solution for cos(x)=0.71 is x=0.78129…+2pin,x=2pi-0.78129…+2pin