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I’m working through the A Level Pure Mathematics 1 Coursebook Cambridge AS & A Level and wanted to discuss one of the basic problem-solving approaches used in the book. For questions involving the distance between two numbers on a number line, I understand that we can use the absolute difference between them. For example: What is the distance between 6 and 104? My solution would be: |104 - 6| = 98

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A question from the A Level Pure Mathematics 1 Coursebook Ca
1.3 Evaluating limits analytically; Questions 27-36
1.3 Evaluating limits analytically; Questions 23-26
1.3 Evaluating limits analytically; Questions 5-22