Solve the system.x2 + y2 = 36x2 - y2 = 36
A. {(6, 0), (-6, 0)}
B. {(6, 0)}
C. {(0, 6), (0, -6)}
D. {(0, -6)}
Answer: A
Mathematics
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?
?
A. 
B. 
C. 
D. 
E. none of these
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