1. do you believe that line segments, rays and congruent lines would affect your daily insights about things and matters? explain. 2. what did you learn from the lesson and how are you going to apply it in real life situations? ​

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