Asked by joy

im taking test
need answer quick'
use the sum and difference identities to write the expression as the cosine of the angle. be sure to simplify the anglee:

cospi/9cospi/3-sin
pi/9sinpi/3
Answered by Ms. Sue
You're taking a test? Do you want us to help you cheat??

My, goodness, no!!
Answered by Reiny
hint:
cos(A+B) = cosAcosB - sinAsinB
There are no AI answers yet. The ability to request AI answers is coming soon!