Toán Lớp 10: ChoA(1;4);B(0;-2);c(-3,5)
A,tìm D(xD;yD)sao cho vectơ CD= vecto AB
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Toán Lớp 10: ChoA(1;4);B(0;-2);c(-3,5)
A,tìm D(xD;yD)sao cho vectơ CD= vecto AB
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