The system of equations $x+y+z=5, x+2 y+3 z=9$ and $x+3 y+\lambda z=\mu$ has unique solution if

The system of equations $x+y+z=5, x+2 y+3 z=9$ and $x+3 y+\lambda z=\mu$ has unique solution if
  1. $\lambda=5, \mu=10$
  2. $\lambda=5, \mu \neq 10$
  3. $\lambda \in \mathbb{R}, \mu \neq 5$
  4. $\lambda \neq 5, \mu \in \mathbb{R}$

Solution

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Asked in: AP EAMCET 2017 (25 Apr Shift 2)

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