Question

给出下列4个指数函数：y=(1/2) ^x,y=2 ^x,y=(1/3) ^x,y=3 ^x,若(1/2) ^x1=2

Answer 1

1.根据(1/2)^x1=(1/3)^x3得:x1x4

3.根据(1/3)^x3=3^x4得:x4>0.x3x3

综上所述:x2>x4>x3>x1