A.f(x)=x和g(x)=(
| B.f(x)=
| ||||
C.f(x)=
| D.f(x)=(x-1)2与g(x)=x2 |
x |
x2-1 |
x-1 |
x2 |
x-2 |
1-x |
|
|
A.4个 | B.3个 | C.2个 | D.1个 |
x |
x2 |
x2 |
x |
x2-4 |
x+2 |
x-2 |
3 | x3 |
|
. |
z |
A.-1+3i | B.2-i | C.-2+i | D.2 |
A.y=x与y=
| ||
B.(x-1)2+(y+2)2=0与(x-1)(y+2)=0 | ||
C.y=
| ||
D.y=logx2与y=2logx |
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