What is the general solution for cos(x)=-0.6060400000000… ?

The general solution for cos(x)=-0.6060400000000… is x=2.22186…+2pin,x=-2.22186…+2pin

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cos(x)=-0.6060400000000…

cos (x) = - 0.6060400000000 \dots

x = 2.22186 \dots + 2 πn, x = - 2.22186 \dots + 2 πn

Solution steps

cos (x) = - 0.60604 \dots

Apply trig inverse properties

x = arccos (- 0.60604 \dots) + 2 πn, x = - arccos (- 0.60604 \dots) + 2 πn

Show solutions in decimal form

x = 2.22186 \dots + 2 πn, x = - 2.22186 \dots + 2 πn

sin (x) cot (x) = 0.5

sin (2 x) tan (2 x + 2) = sin (3 x - 1) tan (2 x + 2)

2 sin^{2} (θ) - 7 sin (θ) - 4 = 0

2 tan (x) - 23 = 0

sin^{2} (x) + cos (x) = - 1

What is the general solution for cos(x)=-0.6060400000000… ?
The general solution for cos(x)=-0.6060400000000… is x=2.22186…+2pin,x=-2.22186…+2pin