Question:medium
Let $f(x)=10x^2+ax,\; x\in \mathbb{R}$ be such that $a^2-400<0$. Let $g(x)=f(x)+f'(x)+f''(x)$. Then $g(x)$ is:
Let $f(x)=10x^2+ax,\; x\in \mathbb{R}$ be such that $a^2-400<0$. Let $g(x)=f(x)+f'(x)+f''(x)$. Then $g(x)$ is:
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Use discriminant condition to check positivity of quadratic.
Updated On: Apr 24, 2026
- greater than 100 but less than 200
- greater than 10 but less than 100
- less than 10
- greater than 0
- less than 1
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The Correct Option is D
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