Mathematics, 12.08.2021 09:10 harleycochran2ovyt3n

Cho hình bình hành ABCD có tâm O, chứng minh rằng (CO) ⃗ - (OB) ⃗=(BA) ⃗

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Cho hình bình hành ABCD có tâm O, chứng minh rằng (CO) ⃗ - (OB) ⃗=(BA) ⃗...

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