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T

thienthandem95

T

tunglam_95_01

Goi y nek: ban tim duoc hai diem cuc tri la A B
Roi tinh do dai doan AB {trac chan la co tham so m}
Hay bien luan m=? De thoa man AB nho nhat nhung van phai thoa man cac dieu kien can.
_hoac vao xem bai giang cua thay tran phuong (mien phi) co bai tuong tu.
 
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