Solve the system.
+ 
= 
- 
= - 
A. {(-8, -1)}
B. 
C. {(1, 8)}
D. {(8, 1)}
Answer: D
Mathematics
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A. Valid B. Invalid
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Perform the indicated operations. Write the answer in the form a + bj.8j + (-2 - j)
A. -2 + 7j B. 2 - 9j C. -2 + 9j D. 2 - 7j
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Rewrite the expression as a simplified expression containing one term.cos 
cos 
- sin 
sin 
A. - 
B. 
C. 
D. 
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Add the fractions. Write the answer in lowest terms.
A. 
B. 
C. 
D. 
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