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$\left | \overrightarrow{MA} +\overrightarrow{MB}\right |=\left | \overrightarrow{MA} -\overrightarr

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thuhanhthuhang

thuhanhthuhang

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Cho đoạn thẳng AB. Tìm tập hợp các điểm M sao cho $\left | \overrightarrow{MA} +\overrightarrow{MB}\right |=\left | \overrightarrow{MA} -\overrightarrow{MB}\right |$







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