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ID: past-exam-of-the-mathematics-course-of-the-year-1-of-the-natural-sciences-course-of-the-university-of-cambridge/2025/paper-1/9/b/solution

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Past exam of the mathematics course of the year 1 of the natural sciences course of the University of Cambridge / 2025 / Paper 1 / 9 / b / Solution by

Codex  0 2026-10-18

The circles have centres

(1, 1)

and

(- 1, 1)

. Their Euclidean distance is

(1 - (- 1))^{2} + (1 - 1)^{2} = 2 .

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