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Mathematics · 2024 · 1 mark
CBSE 2024 · Region 5 · Set 2 · Q5
If x = a cos θ and y = b sin θ, then the value of b^2 x^2+ a^2 y^2 is:
If $\displaystyle \mathrm{x}=\mathrm{a} \cos \theta$ and $\displaystyle \mathrm{y}=\mathrm{b} \sin \theta$, then the value of $\displaystyle \mathrm{b}^{2} \mathrm{x}^{2}+\mathrm{a}^{2} \mathrm{y}^{2}$ is :
Official answer
(A)
$\displaystyle \mathrm{a}^{2} \mathrm{~b}^{2}$
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CBSE Class 10 Mathematics past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.