The existence of the unique solution of the system of equations: `x+y+z=lambda`
`5x-y+muz=2`
`2x+3y-z=6` d e p e n d s on `muon l y` (b) `lambdaon l y` `lambdaa n dmubot h` (d) `n e i t h e rlambdanormu`

Explanation

Condition for a system of equations to have a unique solution is,
`abs(A)ne0`
given system of equation,
`x+y+z=lambda`


`5x-y+muz=2`


`2x+3y-z=6`
determinant,
`=>|(1,1,1),(5,-1,mu),(2,3,-1)|ne0`
Therefore the existence of unique solution depends only on `mu`