极限中的一个化简问题(x^2α+x^α)^(1/α)怎么把x^2
(x^2 α+x^α)^(1/α)怎么把x^2 提出来?
(x^2 α+x^α)^(1/α) =[x^2α（1+1/x^α)]^(1/α) =(x^2α)^1/α[（1+1/x^α)^(1/α)] =x^2[（1+1/x^α)^(1/α)]