Polynomial Degree
Number of Terms
x+ 5x – 2x² + 3x
un
quintic
8y-
5- t - 2t*
6y?
73
2xy + 3
4m - m² + 1
-2g’h

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