Find the gradient of the curve at .

Answer and explanation

Correct answer: C. 6

  1. Step 1: Product rule: . Step 2. At : 6. Answer: 6. Why not the others: 8: That differentiates each factor and multiplies them, which is not the product rule. 2: That differentiates only the second factor. 4: That differentiates only the first factor.

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