Mathematics · 2021
JEE Main · 3 August 2021, Shift 1 · Q64
For the system of linear equations x+3 y+2 z=7; x+λ y+3 z=8; x-2 y+7 z=μ, which of the following statements is NOT true?
For the system of linear equations
$$\begin{aligned}
& x+3 y+2 z=7 \\
& x+\lambda y+3 z=8 \\
& x-2 y+7 z=\mu,
\end{aligned}
$$
which of the following statements is NOT true?
Official answer
(4)
The system has no solution if $\displaystyle \lambda \neq 2$ and $\displaystyle \mu \neq 12$.
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JEE Main 2021 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.