(2^1/2)^6=2^3=8,(3^1/3)^6=3^2=9,所以2^1/2<3^1/3 (2^1/2)^10=2^5=32,(5^1/5)^10=5^2=25,所以2^1/2>5^1/5 所以3^1/3>2^1/2>5^1/5
