Solve the system of equations. If the system has infinitely many solutions, let the last variable be the arbitrary variable.x + y + z = 7x - y + 2z = 7
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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A. True B. False
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Find sec ? if 
and ? terminates in QIII.
What will be an ideal response?
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