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Скалярний добуток векторів a ⃗ = ( 1 , − 2 , 3 ) \vec{a} = (1, -2, 3) і b =(2...
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Скалярний добуток векторів a⃗=(1,−2,3)\vec{a} = (1, -2, 3) і b=(2,0,−1):
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