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[" 1.If the system of equations ax "+y+2...

[" 1.If the system of equations ax "+y+2z=0,x+2y+z=b" and "2x+y+az=0" has no solution then "(a+b)" can "],[" be equals to "],[[" (A) "-1," (B) "2," (C) "3," (D) "4]]

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