若函数fx=logax2-ax+5(a>0且a≠1)满足对任意的x1,x2，当x1<x2≤a2时fx2-fx1<0，则实数a的取值范围是（）_刷题宝

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若函数fx=logax2-ax+5(a>0且a≠1)满足对任意的x1,x2，当x1<x2≤

a

2

时fx2-fx1<0，则实数a的取值范围是（）

A： $a > 0$

B： $0 < a < 2 \sqrt{5}$

C： $0 < a < 1$

D： $1 < a < 2 \sqrt{5}$

上一题下一题 0.0难度选择题更新时间:2018-10-03 12:37:12

答案(点此获取答案解析）

C

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