Question

Find the measures of two angles, one positive and one negative, that are coterminal with pi/10.

Answer 1

Coterminal means that they are in the exact same spot. So you just need to add or subtract a full circle from your starting point. In radians in terms of pi a full circle is 2pi.

Answer 2

So, how exactly would I do that if i was starting at pi/10? I really dont understand this topic at all.

Answer 3

15 pie/7 and -13 pie/7 is the answer

Answer 4

To get coterminal angles, just keep adding (or subtracting) 2pi until you get values that you want.

Answer 5

oh, okay. Thanks soo much!

Answer 6

let me know if you need more explanation :)