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中考数学真题解析 x+y=1 求𝑥2+𝑦2最小值 三种解法 哪种对?
本题为中考真题，在满足x+y=1的情况下， 求𝑥2+𝑦2的最小值，本题提供三种解法，你掌握了哪种？
小升初真题解析-小学奥数102/134
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