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Wednesday, 01 July 2026
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If \(f(x) = 2x^{2} - 3x - 1\), find the value of x for which f(x) is minimum.

If \(f(x) = 2x^{2} - 3x - 1\), find the value of x for which f(x) is minimum.
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  • A \(\frac{3}{2}\)
  • B \(\frac{4}{3}\)
  • C \(\frac{3}{4}\)
  • D \(\frac{2}{3}\)
Correct Answer: Option C
Explanation:
\(y = 2x^{2} - 3x - 1\)
\(\frac{\mathrm d y}{\mathrm d x} = 4x - 3 = 0\) (At turning point)
\(4x = 3 \implies x = \frac{3}{4}\)

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