CBSE 2025 · Region 4 · Set 1 · Q2 · 1 mark
$\displaystyle (1+\sqrt{3})^{2}-(1-\sqrt{3})^{2}$ is :
Official answer
From CBSE’s own marking scheme for this paper.
(C)
a positive irrational number.
Real NumbersRevisiting Irrational NumbersApplymcqeasy
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CBSE Class 10 Mathematics past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.