Question: Question 12 a) A curve has equation y = x3 + x2 - 4x + 1. Find the coordinates where the gradient of the tangent

Question 12 a) A curve has equation y = x3 + x2 - 4x + 1. Find the coordinates where the gradient of the tangent to the curve is 1. [5] b) Another curve has equation y = 5 In x - sin x + e3x Find the value of dy when x = 12 . Give your answer to 3 significant figures. [4] In this question, 1 mark will be given for the correct use of significant figures

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