解
5^0.8
=5^(4/5)
=(5^4)的五次方根
=625的五次方根
只能算到这一步,
下面只能求近似值,如前几位那样
通过计算器求得:
5^0.8=625的五次方根≈3.62389832
5÷(3^0.8)=2.0762182326925288766111338944006
(5÷3)^0.8=1.50480075241239048046152849199
5/(3^0.8)=2.0762182326925288766111338944005
5/(3^0.8)=2.076218233
(5/3)^0.8=1.504800752
5/3^0.8
=5/2.408224685
=2.076218233