(-x根号下b/a)(-a/x根号下ax)(-2ab根号x/b) (x大于0)
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![(-x根号下b/a)(-a/x根号下ax)(-2ab根号x/b) (x大于0)](/uploads/image/z/1985154-42-4.jpg?t=%28-x%E6%A0%B9%E5%8F%B7%E4%B8%8Bb%2Fa%29%28-a%2Fx%E6%A0%B9%E5%8F%B7%E4%B8%8Bax%29%28-2ab%E6%A0%B9%E5%8F%B7x%2Fb%29+%28x%E5%A4%A7%E4%BA%8E0%29)
(-x根号下b/a)(-a/x根号下ax)(-2ab根号x/b) (x大于0)
(-x根号下b/a)(-a/x根号下ax)(-2ab根号x/b) (x大于0)
(-x根号下b/a)(-a/x根号下ax)(-2ab根号x/b) (x大于0)
原式=[-x(b/a)]*[-a/{x[(ax)^(1/2)]}*[-2ab(x/b)^(1/2)].(x>0)
=(-2)*[x^[1-1-(1/2)+(1/2)]*a^[-1+1-(1/2)+1]*b^[1+1-(1/2)].
=(-2)x^0*a^(1/2)*b^(3/2).
故,原式=(-2)a^(1/2)*b^(3/2).