The number of solution of the system of equations: `2x+y-z=7` `x-3y+2z=1,` is `3x+2y+k z=4` has a unique solution if `k!=0` (b) `-1<k<1` (c) `-2<k<2` (d) `k=0`

Question

समीकरणों की प्रणाली के समाधान की संख्या: `2x+y-z=7` `x-3y+2z=1,` है `3x+2y+k z=4` अगर एक अद्वितीय समाधान है `k!=0` (ख) `-1<k<1` (सी) `-2<k<2` (घ) `k=0`