化简(1)√2又7/9 (2)√81/25x²(x>0)

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化简(1)√2又7/9 (2)√81/25x²(x>0)
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化简(1)√2又7/9 (2)√81/25x²(x>0)
化简(1)√2又7/9 (2)√81/25x²(x>0)

化简(1)√2又7/9 (2)√81/25x²(x>0)
(1)原式=√(25/9)=5/3
(2)原式=9/5x