JEE Mains · Maths · STD 12 - 5. continuity and differentiation
Let \(\mathrm{f}: \mathbb{R} \rightarrow \mathbb{R}\) be a thrice differentiable function such that \(f(0)=0, f(1)=1, f(2)=-1, f(3)=2\) and \(f(4)=-2\). Then, the minimum number of zeros of \(\left(3 f^{\prime} f^{\prime \prime}+f f^{\prime \prime \prime}\right)(x)\) is ...........
- A \(8\)
- B \(4\)
- C \(5\)
- D \(9\)
Answer & Solution
Correct Answer
(C) \(5\)
Step-by-step Solution
Detailed explanation
\( \left(3 f^{\prime} f^{\prime \prime}+f f f^{\prime \prime \prime}\right)(x)=\left(\left(f f^{\prime \prime}+\left(f^{\prime}\right)^2\right)(x)\right)^{\prime} \)…
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