第四题怎么做求解
1个回答
2016-09-06
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3^(1/2)×9^(1/3)÷6^(1/3)
=3^(1/2)×3^(2/3)÷3^(1/3)÷2^(1/3)
=3^(1/2+2/3-1/3)÷2^(1/3)
=3^(5/6)/2^(1/3)
=3^(1/2)×3^(2/3)÷3^(1/3)÷2^(1/3)
=3^(1/2+2/3-1/3)÷2^(1/3)
=3^(5/6)/2^(1/3)
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