2014
Mathematics
JAMB
If y = 4x3 - 2x2 + x, find δy/δx
A.
8x2 - 2x + 1
B.
8x2 - 4x + 1
C.
12x2 - 2x + 1
D.
12x2 - 4x + 1
Correct Answer: 12x2 - 4x + 1
Explanation
If y = 4x3 - 2x2 + x, then; δy/δx = 3(4x2) - 2(2x) + 1 = 12x2 - 4x + 1
If y = 4x3 - 2x2 + x, then; δy/δx = 3(4x2) - 2(2x) + 1 = 12x2 - 4x + 1THIS WEEK's
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