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Mathematics · 2025 · 1 mark
CBSE 2025 · Region 6 · Set 3 · Q3
If x=2 sin 60^° cos 60^° and y = sin^2 30^°- cos^2 30^° and x^2= ky^2, the value of k is
If $\displaystyle x=2 \sin 60^{\circ} \cos 60^{\circ}$ and $\displaystyle \mathrm{y}=\sin ^{2} 30^{\circ}-\cos ^{2} 30^{\circ}$ and $\displaystyle x^{2}=\mathrm{ky}^{2}$, the value of k is
Official answer
(C)
$\displaystyle 3$
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CBSE Class 10 Mathematics past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.