三次根号3(三次根号4⼀9-三次根号2⼀9+三次根号1⼀9)^(-1)可以化简为________

2025-03-05 05:36:06
推荐回答(3个)
回答1:

回答2:

你是说

回答3:

³√3(³√(4/9)-³√(2/9)+³√(1/9))^(-1)
=³√3/(³√(2/3)²-³√(2/3)(1/3)+³√(1/3)²)
=³√3(³√(2/3)+³√(1/3))/[(³√(2/3)²-³√(2/3)(1/3)+³√(1/3)²)(³√(2/3)+³√(1/3))]
=(³√3³√(2/3)+³√3³√(1/3))/(³√(2/3)³+³√(1/3)³)
=(³√2+³√1)/(2/3+1/3)
=(³√2+1)/(3/3)
=³√2+1