2.2006 + 20062 2 2= =20062( ) ( )- 2006 2 + 2005 2 - 2006 2 + 2...
2006
- 2.2006 + 2006
2
2
2
=
=
2006
2
( ) ( )
- 2006
2
+ 2005
2
- 2006
2
+ 2005
2005
=
+
2006
2006
2
2
=
( )
- = = = =
2006 2005 2005
2
0 2006
2006 2006 2006
2
) ) ˆ
)
= =
45
0
1 1 2
2
= = = =
2
S u t m: OÀN TI N TRUNG - THCS Hoàng V n Th - N
2010
(
2
- 3) +12
2
2
( + 2) - 8
2
2
1 1 1
1 <
+
+ <2
+
+
+
+ 6
+ 9
4
2
=
+
2
- 4
+ 4
+ 3
=
2
+
- 2
- 2
2
+ 2 - 3
=
2 + 3
=
= 2
=
2
- 2 + 3
M
{
}
M
- 1;- 3;1;3
+1 = 0
= - 1