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Mathematics · 2026 · 1 mark
CBSE 2026 · Region 1 · Set 2 · Q4
For an event $\displaystyle \mathrm{E}, \mathrm{P}(\mathrm{E})+\mathrm{P}(\overline{\mathrm{E}})=x$, then the value of $\displaystyle x^{2}-3$ is :
Official answer
From CBSE’s own marking scheme for this paper.
(A)
$\displaystyle -2$
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CBSE Class 10 Mathematics past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.