2017 ONE(a)

Achievement
Question
Differentiate y=x+tan(2x)y = \sqrt{x} + \tan(2x).
Official Answer
12x12+2sec2(2x)\frac{1}{2}x^{-\frac{1}{2}}+2\sec^2(2x)
Grading Criteria

Achievement (u)

  • Correct solution.

Merit (r)

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Excellence T1

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Excellence T2

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Video Explanation
NCEA Level 3 Calculus Differentiation 2017 NZQA Exam - Worked Answers by infinityplusone(starts at 0:42)
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