What is the general solution for cos(x)=-5/8 ?

The general solution for cos(x)=-5/8 is x=2.24592…+2pin,x=-2.24592…+2pin

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cos(x)=-5/8

cos (x) = - \frac{5}{8}

x = 2.24592 \dots + 2 πn, x = - 2.24592 \dots + 2 πn

Solution steps

cos (x) = - \frac{5}{8}

Apply trig inverse properties

x = arccos (- \frac{5}{8}) + 2 πn, x = - arccos (- \frac{5}{8}) + 2 πn

Show solutions in decimal form

x = 2.24592 \dots + 2 πn, x = - 2.24592 \dots + 2 πn

cos (x) = 0.17

cos (x) = 0.18

sin (2 x) = - \frac{2}{13}

tan (x) - 2 = 3, 0^{\circ} \leq x \leq 36 0^{\circ}

1 = 4 - 6 sin (x)

What is the general solution for cos(x)=-5/8 ?
The general solution for cos(x)=-5/8 is x=2.24592…+2pin,x=-2.24592…+2pin