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Dear visitor. It follows from pi/10-2pi/1=pi/10-20pi/10=(pi-20pi)/10=-19pi/10 that the negative measure of an angle is -19pi/10.
Pretty sure the answer is 21pi/10 and -pi/10 because you need to make common denominators!
Comments
Dear visitor. It follows from pi/10-2pi/1=pi/10-20pi/10=(pi-20pi)/10=-19pi/10 that the negative measure of an angle is -19pi/10.
Pretty sure the answer is 21pi/10 and -pi/10 because you need to make common denominators!