What is the general solution for cos(x)= 9/14 ?

The general solution for cos(x)= 9/14 is x=0.87257…+2pin,x=2pi-0.87257…+2pin

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cos(x)= 9/14

cos (x) = \frac{9}{14}

x = 0.87257 \dots + 2 πn, x = 2 π - 0.87257 \dots + 2 πn

Solution steps

cos (x) = \frac{9}{14}

Apply trig inverse properties

x = arccos (\frac{9}{14}) + 2 πn, x = 2 π - arccos (\frac{9}{14}) + 2 πn

Show solutions in decimal form

x = 0.87257 \dots + 2 πn, x = 2 π - 0.87257 \dots + 2 πn

sin (θ) = \frac{7}{9}

cos (θ) = 0.97617

cos (a) = 0, 99 9^{99} x, \frac{sin ( a )}{cos ( a )} x

sin (\frac{x}{2} + π) = \frac{3}{2 3}

cos (b) = \frac{cos ( 8 0 ^{\circ} )}{cos ( 5 0 ^{\circ} )}

What is the general solution for cos(x)= 9/14 ?
The general solution for cos(x)= 9/14 is x=0.87257…+2pin,x=2pi-0.87257…+2pin