ǰλãҳ > 新课标高中数学人教A版集合、函数、导数综合测试题 - 百度文库
һѡ 1 D
13. -3 . 14.(1,??) 15.
2 B 3 A 4 B 5 C 6 B 7 B 8 A 9 A 10 B 11 A 12 D ÷ 51 16. (1,).
4423456}A?234?CUA?{156}. 17. ⣺?U?{1?B?{345}?(CUA)?A?13456.
56}CUB?{126}?(CUA)?(CUB)?{16}. ?CUA?{118. ⣺
1?xx?1?0??1?x?1. ?0
x?11?xԺf(x)ĶΪ{x|?1?x?1}.
ɣ֪f(x)ĶԭԳ.
?f(?x)?lg1?x1?x1?x1?x1?x?f(x)?f(?x)?lg?lg?lg(?)?lg1?0. 1?x1?x1?x1?x1?xӶf(?x)??f(x).ʺf(x)溯.
x1,x2(?11)ϵʵx1?x2
f(x1)?f(x2)?lg1?x11?x2(1?x1)(1?x2)?lg?lg 1?x11?x2(1?x1)(1?x2)5
(1?x1)(1?x2)(1?x1)(1?x2)?(1?x1)(1?x2)2(x2?x1)?1??
(1?x1)(1?x2)(1?x1)(1?x2)(1?x1)(1?x2)??1?x1?x2?1?x2?x101?x1?01?x2?0. ?(1?x1)(1?x2)(1?x1)(1?x2)?1?0?1.
(1?x1)(1?x2)(1?x1)(1?x2)(1?x1)(1?x2)?lg1?0.f(x1)f(x2).
(1?x1)(1?x2)Ӷf(x1)?f(x2)?lgԣf(x)(?11)Ǽ.
19. ⣺x1?x2x1x2?Rx2?x1?0 x?0ʱf(x)?0 ?f(x2?x1)?0.
f(x2)?f[(x2?x1)?x1]?f(x2?x1)?f(x1)?f(x1) f(x1)?f(x2).?f(x)Ϊ y??xf(0)?f(x)?f(?x).
x?y?0 f(0)?0. ?f(?x)??f(x)f(x)Ϊ溯.
f(1)f(1)2,f(2)2f(1)4,
?f(x)[?21]ϵֵΪ[?42].
20. ⣺ax?1?0ax?1?x?0.Ժf(x)ĶA?{x|x?0}. ɣ֪f(x)ĶԭԳ.
ax?1?2x(ax?1)?f(x)?x??, xxa(a?1)a(a?1)f(x)x(ax1)a(ax1)x(aa(axx1)ax1)axx(1ax)a(1ax)x(ax1)a(ax1)f(x).
ʺf(x)ż.
x(ax?1)?a?1?0.Ӷf(x)?x?0ʱ?a?1?0.
a(ax?1)xx(ax?1)?a?1?0.Ӷf(x)?x?0ʱ?a?1?0. xa(a?1)x6
x(ax?1)Զx?Af(x)??0. xa(a?1)ʶڶAеxf(x)?mʵmȡֵΧΪm?0.
21. ⣺0?t?0.1ʱy?ktͼ(0.11)Ӷ1?0.1kk?10.?y?10t.
1t?a1)ͼ(0.11)1?()0.1?a?0.1?a?0a?0.1. 16161ԣt?0.1ʱy?()t?0.1.
16y?(ÿеĺҩyˣʱtСʱ֮ĺϵʽΪ
(0?t?0.1)?10t?y??1t?0.1.
(),(t?0.1)??16y?(1t?0.111?2t?0.2?1t?0.6. )?0.25()2t?0.2?1644ʴҩͷſʼҪ0.6Сʱѧſܻص. 22. ⣺f(x?y)?f(y)?x(x?2y?1)f(1)?0.
x??1y?1f(0)?f(1)??(?1?2?1)?f(0)??2.
?f(x)?x2?x?2.f(x)ĽʽΪf(x)?x2?x?2. y?0f(x)?f(0)?x(x?1)1ʱɲʽf(x)?3?2x?ax2?x?2?3?2x?ax2?x?1?a. 21133h(x)?x2?x?1ԳΪx?Ӷh(0)?1h()?.?h(x)?1.
2244ٵ0?x??A?{a|a?1}.
g(x)?x2?x?2?ax?x2?(1?a)x?2ԳΪx?x?a?1 2a?1a?1??2x??2֮a??3a?5. 22?B?{a|a??3a?5}.
ӶCRB?{a|?3?a?5}. A?CRB?{a|1?a?5}.
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