Someone once asked...

“回答这个问题:已知实数 \(x,y\) 满足: \(\begin{cases} x^2 + y^2 + xy = 3\\ x^4 + y^4 + x^2y^2 = 21 \end{cases}\) 求 xy 的值。”

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Someone answered with kindness...

问点有点思辨的问题好不好,这种函数计算问题,直接AI就好了啊