Mathematics · 2026
JEE Main · 21 January 2026, Shift 2 · Q6
If the system of equations 3 x+y+4 z=3; 2 x+α y-z=-3; x+2 y+z=4 has no solution, then the value of α is equal to:
If the system of equations
$$\begin{aligned}
& 3 x+y+4 z=3 \\
& 2 x+\alpha y-z=-3 \\
& x+2 y+z=4
\end{aligned}
$$
has no solution, then the value of $\displaystyle \alpha$ is equal to :
Official answer
From NTA’s final answer key for this paper.
(2)
$\displaystyle 19$
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JEE Main 2026 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.