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Differentiation question

2024 · 5 Apr · Shift 2 · Q40

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JEE Main
Mathematics
Differentiation
2024 · 5 Apr · Shift 2 · Q40

Differentiation question

2024 · 5 Apr · Shift 2 · Q40

JEE MainMathematicsDifferentiationMCQ+4 / −1

If

y(\theta)=\frac{2 \cos \theta+\cos 2 \theta}{\cos 3 \theta+4 \cos 2 \theta+5 \cos \theta+2}

, then at

\theta=\frac{\pi}{2}, y^{\prime \prime}+y^{\prime}+y

is equal to :

A
$\frac{1}{2}$
B
1
C
$\frac{3}{2}$
D
2

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