MON is a central angle. Find the measure of arc MN.

Given a circle with a radius of 2 which is the length of an arc measuring 75

Find the domain of the following expression: 1/(√x)-2

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b