M+2分之1+M平方-4分之一的答案

2025-06-22 18:20:41
推荐回答(5个)
回答1:

解: 原式=1/(M+2)+1/(M^2-4)
=(M-2)/(M+2)(M-2)+1/(M^2-4)
=(M-2+1)/(M^2-4)
=(M-1)/(M^2-4)

回答2:

=1/(m+2)+1/(m+2)(m-2)
=(m-2+1)/(m+2)(m-2)
=(m-1)/(m²-4)

回答3:

M+1/2+M²-1/4
=M²+M+1/4
=(4M²+4M+1)/4
=(2M+1)²/4

²

回答4:

1/(m+2)+1/(m^2-4)
=(m-2)/(m^2-4)+1/(m^2-4)
=(m-1)/(m^2-4)

回答5:

【0到正无穷大)