SEE optional math (Vector) - episode 4 (Bikram sir)

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In ∆ABC, D, E, F are the midpoints of sides BC, CA and AB respectively. Prove that:
(AD) ⃗+(BE) ⃗+(CF) ⃗=0

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I didn’t understand a word he said but he explained it wonderfully 👏❤

notCYRUS