4x+a |
1+x2 |
f(x2)-f(x1) |
x2-x1 |
-4x2-2ax+4 |
(1+x2)2 |
|
4m+a |
1+m2 |
4n+a |
1+n2 |
16mn+4a(m+n)+a2 |
(mn)2+(m+n)2-2mn+1 |
-(16+a2) | ||
|
(m+n)2-4x1x2 |
|
f(x2)-f(x1) |
x2-x1 |
4(1-x02) |
(1+x02)2 |
f(x2)-f(x1) |
x2-x1 |
4(1-x1x2) |
(1+x12)(1+x22) |
(1-x02) |
(1+x02)2 |
1-x1x2 |
(1+x12)(1+x22) |
1-x02 |
(1+x02)2 |
1-x1x2 |
(1+x12)(1+x22) |
1-x1x2 |
(1+x1x2)2 |
1-x |
(1+x)2 |
(x-1)2-2 |
(1+x)4 |
1-x02 |
(1+x02)2 |
1-x1x2 |
(1+x12)(1+x22) |
1 |
2 |
x2+x |
x |
A.0 | B.-2 | C.1 | D.-1 |
3 |
2 |
2 |
3 |
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