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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
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May 15, 2022
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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
Mathematics
high-school
Paval
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Himanshu Bhardiya
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May 20, 2022
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Himanshu Bhardiya
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