这个要比较也很简单,log3 2=ln2/ln3,而ln3>1(因为ln3=loge 3,而e<3)所以log3 2ln2/ln4=1/2>1/根号(5)=5^(-1/2),所以就得出5^(-1/2)<㏒3‘2<㏑2
㏒3‘2=lg2/lg3=0.630929753571457437099527114342765^(-1/2)=0.44721359549995793928183473374626㏑2=0.69314718055994530941723212145818所以5^(-1/2)<㏒3‘2<㏑2