c1 |
1 |
c2 |
22 |
cn |
n2 |
cn+1 |
n+1 |
7 |
2 |
3 |
bn+1 |
n(n-1) |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
bn+1 |
bn |
n |
n+2 |
bn |
bn-1 |
bn-1 |
bn-2 |
b2 |
b1 |
n-1 |
n+1 |
n-2 |
n |
1 |
3 |
2 |
n(n+1) |
2 |
n(n+1) |
c1 |
1 |
c2 |
22 |
cn |
n2 |
cn+1 |
n+1 |
c1 |
1 |
c2 |
22 |
cn-1 |
(n-1)2 |
cn |
n |
cn |
n2 |
cn+1 |
n+1 |
cn |
n |
cn+1 |
cn |
(n+1)2 |
n2 |
c1 |
1 |
c2 |
2 |
cn |
cn-1 |
cn-1 |
cn-2 |
c3 |
c2 |
n2 |
(n-1)2 |
(n-1)2 |
(n-2)2 |
32 |
22 |
n2 |
2 |
|
7 |
2 |
1 |
b2 |
62 |
9 |
7 |
2 |
3 |
bn+1 |
n2 |
2 |
n |
2 |
9 |
2 |
3 |
2 |
n2 |
2 |
4n2+21n+36 |
n2-n+9 |
4n2+21n+36 |
n2-n+9 |
25 | ||
n+
|
9 |
n |
4n2+21n+36 |
n2-n+9 |
1 |
x |
| ||
|x+1|-1 |
1 |
x |
A.f(x)=-3x+2 | B.f(x)=log2x | C.f(x)=x3 | D.f(x)=|x| |
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