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phuongle.01061995
2 năm trước
Q = căn x )/(2 căn x +1) + (x+1)/(2x-căn x -1)*[(2x căn x -x- căn x)/(x căn x +1) - (x- căn x)/(x-1)] rút gọn A tính gt của A khi x=7-4 căn3 tìm GTLN hứa 5 sao và câu tl hay 1
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