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Bluebook试题7 · 第 13 题

Bluebook试题7 · 原库模块 1 · Q13 原库参考解析

A circle in the xy-plane has the equation \( \left(x-13\right)^2+\left(y-k\right)^2=64 \). Which of the following gives the center of the circle and its radius?
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