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JAMB - Mathematics (2008 - No. 31)

Find the derivative of \(y=\frac{x^7 - x^5}{x^4}\)
x(x2-1)
3x(x2-1)
3x2-1
7x6-5x4

Forklaring

\(y=\frac{x^7 - x^5}{x^4}\)
y = \(\frac{x^7}{x^4} \div \frac{x^5}{x^4}\)
y = x\(^3\) - x
\(\frac{dy}{dx}\) = 3x\(^2\) - 1

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