A.f(x)=
| B.f(x)=1和g(x)=x0 | ||
C.f(x)=x+1和g(x)=
| D.f(x)=x和g(x)=lnex |
x2-1 |
x-1 |
x2+2x+1 |
A.y=
| B.|y|=|x|和y3=x3 | ||||
C.y=logax2和y=2logax | D.y=x和y=logaax |
A.y=(
| |||||
B.y=elnx与y=logaax | |||||
C.y=lgx-2与y=lg
| |||||
D.y=log(x+1)+log(x-1)与y=loga(x2-1) |
A. | B. | C. | D. |
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