化成指数相同,比较底数大小.
2^(1/2)=X^(1/3)；取√2为正.
X=√2^3√2大于1. 取√3为正.
3=√3^3因为√3^3大于√2^3,所以,√2小于立方根3.
取√2为负及√3为负时,√2它就大于立方根3了
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