log512 |
log525 |
log53+log54 |
2 |
a+b |
2 |
A.0<n<m<1 | B.0<m<n<1 | C.n>m>1 | D.m>n>1 |
A.y=log2x | B.y=log
| C.y=log
| D.y=log4x |
2 |
5 |
1 |
2 |
1 |
2 |
A.f(x)和g(x)都是增函数 |
B.f(x)是减函数,g(x)是增函数 |
C.f(x)和g(x)都是减函数 |
D.f(x)是增函数,g(x)是减函数 |
A.±16 | B.±4 | C.16 | D.4 |
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