If y = 4x3 – 2x2 + x, find (frac{delta y}{delta x})
-
A.
8x2 – 2x + 1 -
B.
8x2 – 4x + 1 -
C.
12x2 – 2x + 1 -
D.
12x2 – 4x + 1
Correct Answer: Option D
Explanation
If y = 4x3 – 2x2 + x, then;
(frac{delta y}{delta x}) = 3(4x2) – 2(2x) + 1
= 12x2 – 4x + 1
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