m2+n2 |
(m+n)2 |
2 |
mn |
(m+n)2 |
(mn)2 |
1 |
m?n |
=[
m2+n2 |
(m+n)2 |
2 |
mn |
(mn)2 |
(m+n)2 |
1 |
m?n |
=
(m?n)2 |
(m+n)2 |
1 |
m?n |
=
m?n |
(m+n)2 |
把m-n=
1 |
4 |
原式=
1 |
16 |
1 |
4 |
m2+n2 |
m2+2mn+n2 |
2 |
mn |
1 |
m |
1 |
n |
1 |
m?n |
m2+n2 |
(m+n)2 |
2 |
mn |
(m+n)2 |
(mn)2 |
1 |
m?n |
m2+n2 |
(m+n)2 |
2 |
mn |
(mn)2 |
(m+n)2 |
1 |
m?n |
(m?n)2 |
(m+n)2 |
1 |
m?n |
m?n |
(m+n)2 |
1 |
4 |
1 |
16 |