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sTHrn
@sTHrn
September 2021
1
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помогите с геометрией, срочно
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sauwg
Дв1 вектор = а+б+с
Вд1=-(а+б+с)
АО =а+ДО= а+1/2ДВ1=а+1/2(а+б+с)=3/2а+б/2+с/2
В1А=В1В+ВА=-с-б
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Вд1=-(а+б+с)
АО =а+ДО= а+1/2ДВ1=а+1/2(а+б+с)=3/2а+б/2+с/2
В1А=В1В+ВА=-с-б