Given: Ray FL bisects ZAFM and mZLFM = 3x - 1 and ZAFL = 4x - 10. Write an equation that can be used to calculate the value of x.

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