If y(x) = sin x cos x sin x + cos x + 1 27 28 27 1 1 1, x ∈ ℝ, th… | JEE Main 2025 Mathematics PYQ

MCQEasyJEE Main 2025 · 3 April, Shift 1Determinants Basics

If $y(x) = \begin{vmatrix} \sin x & \cos x & \sin x + \cos x + 1\\ 27 & 28 & 27\\ 1 & 1 & 1 \end{vmatrix}$ , $x \in \mathbb{R}$ , then $\frac{d^2y}{dx^2} + y$ is equal to

A
$-1$
B
$28$
C
$27$
D
$1$

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