ԇ(ni)ݣ
ӳ(sh)(sh)Ć{(dio)ż
(sh)鷴(sh)ĺ(sh)DgP(gun)ϵ
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߿(sh)W(xu)ԇ(ni)ݣ(sh)

2009-02-18 16:06:34 Դ

(sh)
ԇ(ni)ݣ
ӳ䡣(sh)(sh)Ć{(dio)ԡżԡ
(sh)鷴(sh)ĺ(sh)DgP(gun)ϵ
ָ(sh)ĔU(ku)ָ(sh)\(yn)|(zh)ָ(sh)(sh)
(du)(sh)(du)(sh)\(yn)|(zh)(du)(sh)(sh)
(sh)đ(yng)
ԇҪ
(1)˽ӳĸ⺯(sh)ĸ
(do)xӳAfBУAԪ?z)oʣһ(du)һ(du)һ(sh)ǡǿՔ(sh)ϵӳ䡱СֵӳBӼ.(sh)DcxSһ(g)c(din)cySĹc(din)ܛ]Ҳ₀(g)(sh)Dһ(bio)ϵе(bio)ϵеһܳɞ麯(sh)D(sh)һNӳ䣬ӳһNČ(du)(yng)(sh)ҪЌ(du)(yng)tǺģx`(sh)ЃɷNxһ׃^c(din)µĶxһӳ^c(din)µĶx(f)(x)в܃HM㌦(du)@ɷNxıb(yng)ДǷ(gu)ɺ(sh)P(gun)ϵɂ(g)(sh)P(gun)ϵǷͬȆ}еõ(yng)P(gun)(sh)}_\(yn)á
ԇ}e
o(g)ʽ
f(xy)f(x)f(y)f(xy)f(x)f(y)f(xy)f(x)+f(y)/1-f(x)f(y).к(sh)вMκһ(g)ʽ()
A.f(x)3x
B.f(x)sinx
C.f(x)log2x
D.f(x)tanx
𰸡B
(j)ָ(du)(sh)(sh)|(zh)԰l(f)F(xin)AMf(xy)f(x)f(y)
CMf(xy)f(x)f(y)DMf(xy)f(x)+f(y)/1-f(x)f(y).
BMκһ(g)ʽ
(2)˽⺯(sh){(dio)żԵĸДһЩκ(sh)Ć{(dio)żԵķ

(do)x(sh)Ć{(dio)ֻں(sh)Ķx(ni)ӑՓ(sh)yf(x)ڽo^(q)gϵĆ{(dio)ӳ˺(sh)څ^(q)gϺ(sh)ֵ׃څ(sh)Ǻ(sh)څ^(q)gϵw|(zh)һǺ(sh)ڶxϵw|(zh)(sh)Ć{(dio)nj(du)ij(g)^(q)gԵҪܵ^(q)gơ_(sh)Ć{(dio)Ի{(dio)^(q)gڽ}гöx(do)(sh)x}}߀Д(sh)νY(ji)Ϸֵȵ(sh)żǺ(sh)ЈDд(sh)ʽ߾Ǹ߿c(din)Y(ji)ϵij󺯔(sh)|(zh)̽Ǻ(sh)|(zh)о(sh)ĶxP(gun)ԭc(din)(du)Q@Ǻ(sh)߂żԵıҪl
ԇ}e
R϶xĺ(sh)f(x)ż(sh)f(x)f(2x).f(x)څ^(q)g[1,2]ǜp(sh)tf(x)()
A.څ^(q)g[21](sh)څ^(q)g[3,4](sh)
B.څ^(q)g[21](sh)څ^(q)g[3,4]ǜp(sh)
C.څ^(q)g[21]ǜp(sh)څ^(q)g[3,4](sh)
D.څ^(q)g[21]ǜp(sh)څ^(q)g[3,4]ǜp(sh)
𰸡B


f(x)f(2x)֪f(x)DP(gun)x1(du)Q?yn)f(x)ż(sh)DP(gun)x0(du)Qɵõf(x)ں(sh)Сڞ2Y(ji)f(x)څ^(q)g[1,2]ǜp(sh)ɵf(x)݈DxB.
(3)˽ⷴ(sh)ĸ鷴(sh)ĺ(sh)DgP(gun)ϵ(hu)һЩκ(sh)ķ(sh)
(do)x(sh)Ķxֻں(sh)yax(xR)c(sh)ylogax(x(0))(du)ĺ(sh)Ҳпܴڷ(sh)ֻһһ(du)(yng)ĺ(sh)з(sh)CΨһ}ҪCԣҪ÷CCΨһ鷴(sh)}r(sh)Ҫr(sh)ӛס߶xcֵ򻥓Q_(sh)Ҫ󷴺(sh)n}ľCԣHҪõⷽⲻʽ֪R(sh)߀ҪõQԪ˼롢˼c(sh)P(gun)ĽY(ji)Ķxֵϵһһӳ_ĺ(sh)з(sh)(sh)ĶxֵϷքeԭ(sh)ֵxyf(x)cyf1(x)鷴(sh)(sh)yf(x)Ķx?yn)Aֵ?yn)Btf[f1(x)]x(xB)f1[f(x)]x(xA){(dio)D󣺻鷴(sh)ăɂ(g)(sh)ͬĆ{(dio)ĈDP(gun)yx(du)Q󷴺(sh)һ㷽
(1)yf(x)xf1(y)(2)xf1(y)еxyQλyf1(x)(3)yf(x)ֵyf1(x)Ķx
ԇ}e(2008•ȫһ)
(sh)yf(x1)ĈDc(sh)ylnx1ĈDP(gun)ֱyx(du)Qtf(x)()
A.e2x1  B.e2x  C.e2x1  D.e2x2
𰸡B
С}Ҫԭ(sh)c(sh)DgP(gun)ϵ(sh)
}֪yf(x1)cylnx1鷴(sh)ylnx1ķ(sh)£y1lnxxey1߅ƽxe2y2Qxytylnx1ķ(sh)f(x1)e2x2tf(x)e2xxB.
(4)?jn)?sh)ָ(sh)ĸָ(sh)\(yn)|(zh)ָ(sh)(sh)ĸD|(zh)
(do)x1.С(ji)c(din)ָ(sh)(sh)ĈD|(zh)đ(yng)(du)ںĸ(sh)ăɂ(g)(sh)ʽ^Сɂ(g)(sh)ʽ׃IJͬȡֵвͬСP(gun)ϵr(sh)회(du)ĸ(sh)׃ȡֵM(jn)зӑՓúûָ(sh)(sh){(dio)ԣǽQ@һ}P(gun)I
2.(du)ɻa2xb•axc0a2xb•axc0(0)ָ(sh)̻򲻵ʽQԪQ(yng)ьW(xu)עQԪԪķ
ԇ}e
O(sh)alog1/23b1/32c2*1/3t()
A.a<b<c  B.c<b<a
C.c<a<b  D.b<a<c
𰸡A
ָ(du)(sh)|(zh)֪alog1/23<log1/2*10,0<b1/30.2<1c2*1/3>1a<b<c.(5)⌦(du)(sh)ĸՌ(du)(sh)\(yn)|(zh)Ռ(du)(sh)(sh)ĸD|(zh)
(do)x1.С(ji)c(din)nj(du)(sh)(sh)D|(zh)\(yn)ڌ(du)(sh)(sh)cָ(sh)(sh)鷴(sh)SƵ|(zh)Ռ(du)(sh)(sh)|(zh)r(sh)cָ(sh)(sh)|(zh)һҲҪY(ji)ψDӛ
2.ڌ(du)(sh)ʽ攵(sh)횴0ה(sh)횴Ҳ1P(gun)(du)(sh)Ć}ѳ˸߿ğc(din)(ni)W(xu)P(gun)}r(sh)Ҫ(qing)@R(sh)
ԇ}e
O(sh)a1(sh)f(x)logaxڅ^(q)g[a,2a]ϵֵcСֵ֮1/2ta()
A. 2 B.2  C.22  D.4
𰸡D
O(sh)a1(sh)f(x)logaxڅ^(q)g[a,2a]ϵֵcСֵքeloga2alogaa1IJ1/2l(xing)oga21/2a4xD.
(6)܉\(yn)ú(sh)|(zh)ָ(sh)(sh)͌(du)(sh)(sh)|(zh)QijЩεČ(sh)H}
(do)xָ(sh)(sh)f(x)ax|(zh)f(xy)f(x)f(y)f(1)a0.(du)󺯔(sh)оxֵΨһ;܃Hهں(sh)ģ(du)(sh)(sh)f(x)logax|(zh)f(xy)f(x)f(y)f(a)1(a>0a1)(yng)ע⌦(du)(sh)(sh)ĈD|(zh)ڽ}еđ(yng)
ԇ}e(2008•ȫ)
x(e1,1)alnxb2lnxcln3xt()
A.a<b<c  B.c<a<b
C.b<a<c  D.b<c<a
𰸡C
x(e1,1)alnx(1,0)balnx<0b<a֡acС0ln2x<1c>ab<a<cʑ(yng)xC.

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