Cho tam giác abc có trọng tâm g. Gọi h là điểm đối xứng của g qua b. Cm: vtHA -5vt HB +vt HC=vt 0

Debaghtk asked Dec 19, 2022

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21 votes

Debaghtk asked Dec 19, 2022

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11 votes

PAKYOU KAHAHAHAHAHAHAHAGAGAAHAHA

Ali Mokrani answered Dec 24, 2022

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