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Tìm x, y sao cho: B=-x^2+2xy-4y^2+2x+10y-8
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Tìm x, y sao cho: B=-x^2+2xy-4y^2+2x+10y-8

User Mensur
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1 Answer

3 votes

Answer:

Hello,

Explanation:

All i can do is to show you the ellipse.

Tìm x, y sao cho: B=-x^2+2xy-4y^2+2x+10y-8-example-1
User Arthur Silva
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