Mathematics · 2025
JEE Main · 23 January 2025, Shift 2 · Q4
The system of equations x+y+z=6; x+2 y+5 z=9; x+5 y+λ z=μ has no solution if
The system of equations
$$\begin{aligned}
& x+y+z=6 \\
& x+2 y+5 z=9 \\
& x+5 y+\lambda z=\mu
\end{aligned}
$$
has no solution if
Official answer
From NTA’s final answer key for this paper.
(4)
$\displaystyle \lambda=17, \mu \neq 18$
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JEE Main 2025 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.