1 |
b2+c2-a2 |
1 |
c2+a2-b2 |
1 |
a2+b2-c2 |
1 |
-2bc |
1 |
-2ac |
1 |
-2ab |
a |
2abc |
b |
2abc |
c |
2abc |
a+b+c |
2abc |
a+b+c |
2abc |
2a |
2a-b |
b |
2a-b |
1 |
x+3 |
3x+5 |
x2+2x-3 |
1-3x |
x2-1 |
M |
x+1 |
N |
x-1 |
A.M=-1,N=-2 | B.M=-2,N=-1 | C.M=1,N=2 | D.M=2,N=1 |
2m |
m+n |
m-n |
n+m |
x2 |
1-x |
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