问题
填空题
已知x=1+
|
答案
+1 x+2
-1 x2-4
=1 x-2
+-4 x2-4
=1 x2-4
=-3 x2-4
=--3 (1+
)2-43
．3 2
故答案为-
．3 2
搜题请搜索小程序“爱下问搜题”
已知x=1+
|
+1 x+2
-1 x2-4
=1 x-2
+-4 x2-4
=1 x2-4
=-3 x2-4
=--3 (1+
)2-43
．3 2
故答案为-
．3 2