x2 |
2(x-1) |
1 |
an |
1 |
an+1 |
n+1 |
n |
1 |
an |
1 |
an |
x2 |
2(x-1) |
-a | 2 n |
-a | 2 n-1 |
1 |
n+1 |
n+1 |
n |
1 |
n |
1 |
x+1 |
x+1 |
x |
1 |
x |
1 |
n |
1 |
2 |
1 |
3 |
1 |
n |
1 |
n+1 |
n+1 |
n |
1 |
n |
x2 |
2(x-1) |
x2-2x |
2(x-1)2 |
-a | 2 n |
-a | 2 n-1 |
1 |
n+1 |
n+1 |
n |
1 |
n |
1 |
x+1 |
x+1 |
x |
1 |
x |
1 |
x |
1 |
t-1 |
1 |
t |
1 |
x |
x+1 |
x |
1 |
t |
1 |
t |
1 |
t2 |
t-1 |
t2 |
1 |
t |
x+1 |
x |
1 |
x+1 |
1 |
x |
x+1 |
x |
1 |
x+1 |
1 |
n+1 |
n+1 |
n |
1 |
n |
1 |
an+1 |
n+1 |
n |
1 |
an |
1 |
n |
1 |
2 |
1 |
3 |
1 |
n |
1 |
n+1 |
n+1 |
n |
1 |
n |
1 |
2 |
1 |
3 |
1 |
2012 |
2 |
1 |
3 |
2 |
2012 |
2011 |
1 |
2 |
1 |
3 |
1 |
2011 |
科目:高中數(shù)學(xué) 來源: 題型:
a-x |
x |
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科目:高中數(shù)學(xué) 來源: 題型:
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x |
1 |
y |
25 |
4 |
25 |
4 |
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