In the following problem the expression is the right side of

Last updated: 4/15/2023

In the following problem the expression is the right side of the formula for cos x B with particular values for x and B COS 7x 12 COS The value of x is The value of is 3 a Identify a and in the expression 7 12 7 T 3 The expression is cos sin b Write the expression as the cosine of an angle 7 12 T 4 sin c Find the exact value of the expression 7