f(x2)-f(x1) |
x2-x1 |
A.f(-2)<f(1)<f(3) | B.f(1)<f(-2)<f(3) | C.f(3)<f(-2)<f(1) | D.f(3)<f(1)<f(-2) |
f(x2)-f(x1) |
x2-x1 |
1 |
x-b |
A.2 | B.4 | C.b | D.2b |
|x-2|-a | ||
|
a |
2 |
A.-
| B.
| C.2 | D.-2 |
A.2 | B.-2 | C.3 | D.-1 |
1 |
x |
A.(-∞,1) | B.(1,+∞) | C.(-∞,0)∪(0,1) | D.(-∞,0)∪(1,+∞) |
|
A.(0,
| B.(
| C.[
| D.[
|
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