1 |
f(n)+2 |
A.
| B.
| C.
| D.
|
1 |
f(n)+2 |
1 |
f(n)+2 |
1 |
n2+3n+2 |
1 |
(n+1)(n+2) |
1 |
n+1 |
1 |
n+2 |
1 |
f(n)+2 |
1 |
2 |
1 |
3 |
1 |
3 |
1 |
4 |
1 |
n+1 |
1 |
n+2 |
1 |
2 |
1 |
n+2 |
n |
2(n+2) |
A.-sin(3-4x) | B.3-cos(-4x) | C.4cos(3-4x) | D.-4cos(3-4x) |
(x-1)(x-2) |
(x+1)(x+2) |
A.
| B.-
| C.
| D.-
|
π |
2 |
π |
2 |
A.-1 | B.-1+
| C.1 | D.
|
A.-2cosx | B.2cosx | C.0 | D.-2sinx |
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