Analysis and Approaches HL Practice Paper Book | Page 53

4 . Let is

3 2 f ( x) � px � qx � 2x � 1. At x � 1, the slope of the normal of the curve of f

1

� . It is given that 15 f ^�1 ( 41 ) � 2 , find the value of p and of q . [ 8 ]

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