Question on: JAMB Mathematics - 2008
Find the derivative of (y=\frac{x^7 - x^5}{x^4})
A
x(x2-1)
B
3x(x2-1)
C
3x2-1
D
7x6-5x4
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Correct Option: C
(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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