The system of equations $x+y+z=5, x+2 y+a z=9, x+2 y+z=b$ is inconsistent if

The system of equations $x+y+z=5, x+2 y+a z=9, x+2 y+z=b$ is inconsistent if
  1. $a=1, b=9$
  2. $a=1, b \neq 9$
  3. $a \neq 1, b=9$
  4. $a \neq 1, b \neq 9$

Solution

No solution. Refer to answer key.

Asked in: AP EAMCET 2017 (24 Apr Shift 2)

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