Tìm GTLN,GTNN (nếu có): a) A= 2x ² + 9x -13 b) B= (3x ² -1)/(x ²+2) c) C= (x ² -4x -4)/(x ²-4x+5) d) D= (3x ²-8x+6)/(x ² -2x+1
Question
Adela
Tìm GTLN,GTNN (nếu có):
a) A= 2x ² + 9x -13
b) B= (3x ² -1)/(x ²+2)
c) C= (x ² -4x -4)/(x ²-4x+5) ...
