2根号a×根号ab/2 计算
问题描述：
2根号a×根号ab/2 计算
答
2√a×√ab/2
=√(4a×ab/2)
=a√(2b)
2根号a×根号ab/2 计算
2√a×√ab/2
=√(4a×ab/2)
=a√(2b)