2012
Mathematics
JAMB
If y = x2 - 1/x, find δy/δx
A.
2x - 1/x2
B.
2x + x2
C.
2x - x2
D.
2x + 1x2
Correct Answer: 2x + 1x2
Explanation
y = x2 - 1/x y = x2 - x-1 δy/δx = 2x + x-2 δy/δx = 2x + 1/x2
y = x2 - 1/x y = x2 - x-1 δy/δx = 2x + x-2 δy/δx = 2x + 1/x2THIS WEEK's
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