Solve. x + y + z = 1 x - y + 2z = 04x + y + z = -11
A. (-4, 3, 2)
B. (-4, 2, 3)
C. (3, -4, 2)
D. (3, 2, -4)
Answer: B
Mathematics
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A. - 
B. 
C. - 
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A. 1,990 B. 1,854 C. 1,947 D. 1,890
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+ cos ?
A. 
B. 
C. 
D. 
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Mathematics