-3根号(3m^2-3n^2)/2a^2除以(3/2根号m+n/a^2)乘以乘以根号a^2/m-n (a>0)

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/16 22:25:36

-3根号(3m^2-3n^2)/2a^2除以(3/2根号m+n/a^2)乘以乘以根号a^2/m-n (a>0)
-3根号(3m^2-3n^2)/2a^2除以(3/2根号m+n/a^2)乘以乘以根号a^2/m-n (a>0)

-3根号(3m^2-3n^2)/2a^2除以(3/2根号m+n/a^2)乘以乘以根号a^2/m-n (a>0)
-3根号(3m^2-3n^2)/2a^2除以(3/2根号(m+n)/a^2)乘以根号[a^2/(m-n)]
= -3√【3(m+n)(m-n)】/2a^2除以(3/2根号(m+n)/a^2)乘以根号[a^2/(m-n)]
= -3/2√【3/2(m+n)(m-n)】/a^2除以(3/2根号(m+n)/a^2)乘以根号[a^2/(m-n)]
= -√【3(m-n)】乘以根号[a^2/(m-n)]
= -√(3a^2)
= -a√3