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2025年12月美国B卷 · 第 21 题

2025年12月美国B卷 · 原库模块 1 · Q21 参考答案

A circle in the xy-plane has its center at (3, 2) and a radius with a length of 4. The equation for this circle can be written in the form \( (x-h)^2+(y-k)^2=b \), where h, k, and b are constants. What is the value of h?
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