What is the general solution for cos(x)=-8/17 ?

The general solution for cos(x)=-8/17 is x=2.06075…+2pin,x=-2.06075…+2pin

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cos(x)=-8/17

cos (x) = - \frac{8}{17}

x = 2.06075 \dots + 2 πn, x = - 2.06075 \dots + 2 πn

Solution steps

cos (x) = - \frac{8}{17}

Apply trig inverse properties

x = arccos (- \frac{8}{17}) + 2 πn, x = - arccos (- \frac{8}{17}) + 2 πn

Show solutions in decimal form

x = 2.06075 \dots + 2 πn, x = - 2.06075 \dots + 2 πn

sin (x) = \frac{6.1}{9.9}

sech (x) = 0

sin^{2} (x) - cos^{2} (x) = 0, (0, 2 π)

tan (α) = - 0.9857

8 sin^{2} (x) = 8 - 4 cos (x)

What is the general solution for cos(x)=-8/17 ?
The general solution for cos(x)=-8/17 is x=2.06075…+2pin,x=-2.06075…+2pin