(m+1/m-1)²是多少
问题描述:
(m+1/m-1)²是多少
答
(m+1/m-1)²
=(m²+2m+1)/(m²-2m+1)
(m+1/m-1)²是多少
(m+1/m-1)²
=(m²+2m+1)/(m²-2m+1)