Toán Lớp 7: Tìm gtnn của: a, A= /x+1/^2+/2y-1/-5.
b, B= /x+1/+/x-3/
c,C= /x+2/+/x+5/+ /2y-1/+/x-1/
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Toán Lớp 7: Tìm gtnn của: a, A= /x+1/^2+/2y-1/-5.
b, B= /x+1/+/x-3/
c,C= /x+2/+/x+5/+ /2y-1/+/x-1/
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