N
ngovothanhtung


cho ham so y=x+1/x-1 (H)
lap phuong trinh duong thang (d) di qua M(-1/2;-1/2) va cat (H) tai 2 diem A,B sao cho M la trung diem AB
lap phuong trinh duong thang (d) di qua M(-1/2;-1/2) va cat (H) tai 2 diem A,B sao cho M la trung diem AB
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