f2(1)+f(2) |
f(1) |
f2(2)+f(4) |
f(3) |
f2(3)+f(6) |
f(5) |
f2(4)+f(8) |
f(7) |
f2(5)+f(10) |
f(9) |
f2(1)+f(2) |
f(1) |
f2(2)+f(4) |
f(3) |
f2(3)+f (6) |
f(5) |
f2(4)+f(8) |
f(7) |
f2(5)+f(10) |
f(9) |
2f2(1) |
f(1) |
2f2(2) |
f(3) |
2f2(3) |
f(5) |
2f2(4) |
f(7) |
2f2(5) |
f(9) |
f2(n) |
f(2n-1) |
2f2(1) |
f(1) |
2f2(2) |
f(3) |
2f2(3) |
f(5) |
2f2(4) |
f(7) |
2f2(5) |
f(9) |
f2(1)+f(2) |
f(1) |
f2(2)+f(4) |
f(3) |
f2(3)+f (6) |
f(5) |
f2(4)+f(8) |
f(7) |
f2(5)+f(10) |
f(9) |
1 |
2 |
x+2 |
A.(2,+∞) | B.(-∞,-1) | C.[-2,-1)∪(2,+∞) | D.(-1,2) |
A.0 | B.-4 | C.-8 | D.-16 |
1 |
3 |
2a |
x |
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