What is the general solution for cos(x)= 1/7 ?

The general solution for cos(x)= 1/7 is x=1.42744…+2pin,x=2pi-1.42744…+2pin

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cos(x)= 1/7

cos (x) = \frac{1}{7}

x = 1.42744 \dots + 2 πn, x = 2 π - 1.42744 \dots + 2 πn

Degrees

x = 81.78678 \dots^{\circ} + 36 0^{\circ} n, x = 278.21321 \dots^{\circ} + 36 0^{\circ} n

Solution steps

cos (x) = \frac{1}{7}

Apply trig inverse properties

cos (x) = \frac{1}{7}

General solutions for

cos (x) = \frac{1}{7}

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

x = arccos (\frac{1}{7}) + 2 πn, x = 2 π - arccos (\frac{1}{7}) + 2 πn

x = arccos (\frac{1}{7}) + 2 πn, x = 2 π - arccos (\frac{1}{7}) + 2 πn

Show solutions in decimal form

x = 1.42744 \dots + 2 πn, x = 2 π - 1.42744 \dots + 2 πn

sin (5 x + 43) = cos (- x + 3 1^{\circ})

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

x, arctan (x^{2} + 9 y^{2} - 2 x - 36 y + 37) = 0

sin (5 x) = sin (x)

cos (θ) = \frac{5}{3}

What is the general solution for cos(x)= 1/7 ?
The general solution for cos(x)= 1/7 is x=1.42744…+2pin,x=2pi-1.42744…+2pin