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In DeltaABC, if M is the midpiont of BC ...

In `DeltaABC,` if M is the midpiont of BC and seg AM `bot` seg BC, then prove that prove that `AB^(2)+AC^(2)=2AM^(2)+2BM^(2).`

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`thereforeAB^(2)+AC^(2)=2AM^(2)+2BM^(2)`
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