2x - \(\frac{1}{x^2}\)
2x + x2
2x - x2
2x + \(\frac{1}{x^2}\)
Correct answer is D
y = x2 - \(\frac{1}{x}\) y = x2 - x-1 \(\frac{\delta y}{\delta x}\) = 2x + x-2 \(\frac{\delta y}{\delta x}\) = 2x + \(\frac{1}{x^2}\)
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