求大神帮忙解这道题!!!
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=abSqrt[aSurd[a b^2, 3] ]/(a b^2 a^(-1/3) b^(1/3)
=ab a^(1/2)a^(1/6) b^(1/3)/(a^(2/3) b^(7/3))
=a a^(4/6) b^(1/3)/(a^(2/3) b^(4/3))
=a^(2/3) b^(1/3) / (a^(2/3) b^(4/3))
=a/b
=ab a^(1/2)a^(1/6) b^(1/3)/(a^(2/3) b^(7/3))
=a a^(4/6) b^(1/3)/(a^(2/3) b^(4/3))
=a^(2/3) b^(1/3) / (a^(2/3) b^(4/3))
=a/b
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