2017 TWO(a)

Achievement
Question
Differentiate y=2(x24x)5y = 2(x^2 - 4x)^5.

*You do not need to simplify your answer.*
Official Answer
dydx=10(x24x)4(2x4)\dfrac{dy}{dx}=10(x^2-4x)^4\cdot(2x-4)
Grading Criteria

Achievement (u)

  • Correct derivative.

Merit (r)

-

Excellence T1

-

Excellence T2

-
Video Explanation
NCEA Level 3 Calculus Differentiation 2017 NZQA Exam - Worked Answers by infinityplusone(starts at 25:18)
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