Can someone pls help me with this question. thanks.

Which of the following can be used to explain a statement in a geometric proof?

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

30 ! the graph shows the number of siblings different students have. select from the drop-down menus to correctly complete the statement.