Question

Pre-Cal problem. Please help.

Answer 1

what are we supposed to do?

Answer 2

That's all it says, but I'm pretty sure all you have to do is fill in the blank

Answer 3

the blank is cos

Answer 4

just "cos" ?

Answer 5

because sin (pi/3 ) cos (pi/6) = 1/2 {sin (pi/3 + pi/6) + sin (pi/3-pi/6)] = 1/2 [ sin pi/2 + sin pi/6]

Answer 6

oh, so my answer would be cos ? :)

Answer 7

yeap