ax2+1 |
bx+c |
ax2+1 |
bx+c |
ax2+1 |
bx+c |
ax2+1 |
-bx+c |
2c |
(bx+c)(-bx+C) |
ax2+1 |
bx |
a+1 |
b |
4a+1 |
2b |
4a+1 |
a+1 |
1 |
2 |
x2+1 |
x |
1 |
x |
1 |
x1 |
1 |
x2 |
x2-x1 |
x1x2 |
1 |
x1x2 |
1 |
x1x2 |
x2-1 |
A.0 | B.
| C.1 | D.
|
1 |
2+log2x |
A.单调递减,无最小值 | B.单调递减,有最小值 |
C.单调递增,无最大值 | D.单调递增,有最大值 |
1 |
x-1 |
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