Can someone please guide me to this problem.
I know how to determine reference angles of radians but I just get thrown off with negatives. The answer is 7pi/18 as shown.

Question

Can someone please guide me to this problem.
I know how to determine reference angles of radians but I just get thrown off with negatives. The answer is 7pi/18 as shown.

anonymous · Answer

attachment

anonymous · Answer

The total angle measurement of a circle is 360 degrees or 2pi

Therefore starting at the +x axis and then drawing the angle to the other arrow you would find 2pi - (25pi/18) = (7pi/18)

anonymous · Answer

@PhysicsGuru I thought when a radian is at the 2nd quadrant you suppose to use:
a=pi-0

anonymous · Answer

Not sure what you mean by that equation, I will draw a picture:
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