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