2＊根号3＝2＊3^(1/2)
开三次方1.5=(3/2)^(1/3)
=3^(1/3)*(1/2)^(1/3)
12的1／6次方＝(4*3)^(1/6)
=2^(1/3)*(1/3)^(1/6)
三者相乘,得：
2*3^(1/2+1/3+1/6)*(1/2*2)^(1/3)=6