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July 2022
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найдите координаты вершины параболы у=2х^2-х+1
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Leka270
X'=-b/2a=-(-1)/2*2=1/4
y'=2*1/16-1/4+1=1/8-2/8+8/8=7/8
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y'=2*1/16-1/4+1=1/8-2/8+8/8=7/8