Question

I need help with this problem. I don't understand what it means.

Answer 1

`-(1)/(3)\pi`

Explanation:

Degrees and radians are two different systems for measuring angles. An angle of 360 ° equals 2π radians; an angle of 180 ° equals π radians.

Therefore the formula is the following:

`x\cdot(\pi)/(180)=-60\cdot(\pi)/(180)=-(1)/(3)\pi`