Mathematics · 2025
JEE Main · 3 April 2025, Shift 1 · Q16
If y(x)= |sin x, cos x, sin x+ cos x+1; 27, 28, 27; 1, 1, 1|, x ∈ R, then (d^2 y)/(d x^2)+y is equal to
If $\displaystyle y(x)=\left|\begin{array}{ccc}\sin x & \cos x & \sin x+\cos x+1 \\ 27 & 28 & 27 \\ 1 & 1 & 1\end{array}\right|, x \in \mathbb{R}$, then $\displaystyle \frac{d^2 y}{d x^2}+y$ is equal to
Official answer
From NTA’s final answer key for this paper.
(2)
$\displaystyle -1$
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JEE Main 2025 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.