Question on: JAMB Mathematics - 2008
Find the derivative of y = (\frac{x^7 - x^5}{x^4})
A
(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}) = (\frac{x^7 - x^5}{x^4})
Y = X3 - X
(\frac{dy}{dx}) = 3x3 - 1 - x1 - 1
= 3x2 - xo
(\frac{dy}{dx}) = 3x2 - 1
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