Wednesday
August 5, 2015

Homework Help: precal

Posted by joy on Monday, December 27, 2010 at 4:20pm.

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

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Members