Aflorist has 5 tulips, 15 carnations and 25 roses. if the florist wants to create identical bouquets without any leftover flowers, what is the greatest number of bouquets the florist can make

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