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Mathematics · 2023 · 1 mark
CBSE 2023 · Region 6 · Set 3 · Q18
The condition for the system of linear equations a x+ by = c; l x+ my = n to have a unique solution is
The condition for the system of linear equations $\displaystyle \mathrm{a} x+\mathrm{by}=\mathrm{c} ; l x+\mathrm{my}=\mathrm{n}$ to have a unique solution is
Official answer
(A)
$\displaystyle \mathrm{am} \neq \mathrm{b} l$
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CBSE Class 10 Mathematics past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.