Which function represents the graph? O y=-3cos(x)
O y=-3sin(x)
O y = 3cos(x)
O y = 3sin(x)

What does x = in this equation x+3+2x=x+5

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

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