Perform the indicated operation.
- 
A. 0
B. - 
C. 
D. 
Answer: D
Mathematics
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Rewrite the expression as a simplified expression containing one term.cos 
cos 
- sin 
sin 
A. - 
B. 
C. 
D. 
Mathematics
Simplify the complex rational expression using Method 1.
A. - 
B. - 
C. 
D. 
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics
Solve the system of equations.
A. x = -1, y = 5, z = -2; (-1, 5, -2) B. x = -2, y = 5, z = -1; (-2, 5, -1) C. x = -2, y = -1, z = 5; (-2, -1, 5) D. inconsistent
Mathematics