2013 ONE(a)

Achievement
Question
Differentiate y=tan(x2+1)y = \tan(x^2 + 1).

*You do not need to simplify your answer.*
Official Answer
dydx=sec2(x2+1)2x\dfrac{dy}{dx}=\sec^2(x^2+1)\cdot 2x
Grading Criteria

Achievement (u)

  • Correct derivative.

Merit (r)

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Excellence T1

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Excellence T2

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