Practicing Success
Practicing Success
CUET Preparation Today
The system of equations x + 2y + 3z = 4, 2x + 3y + 4z = 5, 3x + 4y + 5z = 6 has |
Infinitely many solution No solution Unique solution None of these |
Infinitely many solution |
Since $\Delta=\left|\begin{array}{lll}1 & 2 & 3 \\ 2 & 3 & 4 \\ 3 & 4 & 5\end{array}\right|=0$, (row are in AP with common difference 1) Similarly $\Delta_{x}=\Delta_{y}=\Delta_{z}=0$. Hence (1) is the correct answer. |
