π |
2 |
A.y=sinx | B.y=tanx | C.y=cosx | D.y=lnx |
π |
2 |
x1+x2 |
2 |
x1-x2 |
2 |
π |
2 |
x1+x2 |
2 |
π |
2 |
π |
4 |
x1-x2 |
2 |
x1+x2 |
2 |
x1-x2 |
2 |
π |
2 |
A.f(x)=x
| B.f(x)=x-3 | C.f(x)=(
| D.f(x)=|lnx| |
A.y=sin(x+
| B.y=x
| C.y=x
| D.y=x-3 |
f(a)-f(b) |
a-b |
A.-3≤m≤1 | B.m≤-3或m≥1 | C.-3<m<1 | D.m<-3或m>1 |
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