What is the general solution for cos(x)=-2/pi ?

The general solution for cos(x)=-2/pi is x=2.26090…+2pin,x=-2.26090…+2pin

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cos(x)=-2/pi

cos (x) = - \frac{2}{π}

x = 2.26090 \dots + 2 πn, x = - 2.26090 \dots + 2 πn

Degrees

x = 129.54022 \dots^{\circ} + 36 0^{\circ} n, x = - 129.54022 \dots^{\circ} + 36 0^{\circ} n

Solution steps

cos (x) = - \frac{2}{π}

Apply trig inverse properties

cos (x) = - \frac{2}{π}

General solutions for

cos (x) = - \frac{2}{π}

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

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

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

Show solutions in decimal form

x = 2.26090 \dots + 2 πn, x = - 2.26090 \dots + 2 πn

What is the general solution for cos(x)=-2/pi ?
The general solution for cos(x)=-2/pi is x=2.26090…+2pin,x=-2.26090…+2pin