For each trigonometric expression in the lefthand column, choose the expression from the righthand column that completes a fundamental identity. Enter the appropriate letter (A,B,C,D, or E) in each blank.

 

 1. [math]
 2. [math]
 3. [math]
 4. [math]
 5. [math]
 

A. [math]
B. [math]
C. [math]
D. [math]
E. [math]

Your overall score for this problem is