Mathematics · 2025
JEE Main · 2 April 2025, Shift 2 · Q23
If y= cos ((π)/3+ cos^-1 x/2), then (x-y)^2+3 y^2 is equal to ____.
If $\displaystyle y=\cos \left(\frac{\pi}{3}+\cos ^{-1} \frac{x}{2}\right)$, then $\displaystyle (x-y)^2+3 y^2$ is equal to $\displaystyle \_\_\_\_$.
Official answer
From NTA’s final answer key for this paper.
3
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JEE Main 2025 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.