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ZX-9DF03DE10F26年8月国际C卷练习 · 第 22 题
26年8月国际C卷练习 · 原库模块 2 · Q22 参考答案
\( x-3y=12 \)
\( x^2+9y^2=-6xy+16 \)
The solution to the given system of equations is (x, y). Which of the following could be (x, y)?
I: (4, \( -\frac{8}{3} \) )
II: (8, \( -\frac{4}{3} \) )
III: (3, \( −3 \) )
\( x^2+9y^2=-6xy+16 \)
The solution to the given system of equations is (x, y). Which of the following could be (x, y)?
I: (4, \( -\frac{8}{3} \) )
II: (8, \( -\frac{4}{3} \) )
III: (3, \( −3 \) )
参考答案：
解题思路
容易忽略的一步
