find the next two positive and negative angles coterminal with the quadrantal angle.

Question

90 degrees.

I am really confused, what would the two positive and two least negative numbers be? i know it you add or subtract 360.

Answer 1

Assistance needed.

Answer 2

I think you would just add and subtract multiples of 360° to end up in the same postion (coterminal)

coterminal with 90° in the positive direction:
450° and 810°
in the negative direction:
-270° and -630°

Answer 3

Find the next two positive and two negative angles that are coterminal with the given quadrantal angle.
angle -630