A.Y=2x | B.y=x3+2x | C.y=-sinx | D.y=-
|
1 |
x |
1 |
2 |
x-y |
1-xy |
1 |
2 |
2xn | ||
1+
|
n |
2 |
5 |
6 |
f(x1)-1 |
f(x2)-1 |
f(x2)-1 |
f(x3)-1 |
f(xn)-1 |
f(xn+1)-1 |
n |
2 |
A.f(x)=-x(1-x) | B.f(x)=x(1+x) | C.f(x)=-x(1+x) | D.f(x)=x(x-1) |
|
A.(1,+∞) | B.[
| C.(-∞,3) | D.(1,3) |
π |
2 |
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