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ZX-CB39DBEF242026年9月美国A卷 · 第 17 题
2026年9月美国A卷 · 原库模块 3 · Q17 参考答案
\( x^2+x\sqrt{t}+y^2-y-73=0 \)
The given equation, where t is a constant, defines a circle in the xy-plane. The radius of this circle is \( \sqrt{91} \). What is the value of t?
The given equation, where t is a constant, defines a circle in the xy-plane. The radius of this circle is \( \sqrt{91} \). What is the value of t?
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