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        1. (3)<0..ԇ^cĴ

           

          }Ŀб(𰸺ͽ)

          ֪(sh)f(x)sin (鳣(sh))}

          ٲՓȡֵ(sh)f(x)ڶǦ

          ڴڳ(sh)ʹú(sh)f(x)ż(sh)

          ۺ(sh)f(x)څ^(q)g[У23У2](sh)

          <0(sh)f(x)ĈDɺ(sh)ysinĈDƽ|2|λLȵõ

          _}̖________

           

          鿴𰸺ͽ>>

          O(sh){an}Ma1ta2t2ǰn헺͞SnSn2(t1)Sn1tSn0(nN*)
          (1)C(sh){an}ȱȔ(sh)У{an}ͨ헹ʽ
          (2)<t<2r^2n2nctntnĴ
          (3)<t<2bnC

          鿴𰸺ͽ>>

          ֪κ(sh)f(x)=ax2+bx+c(a0).

          (1)a>b>c,f(1)=0,ǷmR,ʹf(m)=-ar,f(m+3)(sh)?,CĽY(ji)Փ;,f.

          (2)x1,x2R,x1<x2,f(x1)f(x2),f(x)=[f(x1)+f(x2)]2Ȍ,Cһ(x1,x2).

          (3)f(0)=0,Ƿbֵʹ{x|f(x)=x}={x|f(f(x))=x}?,bȡֵ;,f.

          鿴𰸺ͽ>>

           һ(sh)(sh)Ml鳣(sh)tQ@һ(sh) εȲ(sh)С Q顰ιoPijεȲ(sh)ĽY(ji)Փ

          ٌ<0,t@һ(sh)б؞иF(sh)У

          ڮ>0, >0r@һ(sh)б؞{(dio)f(sh)

          @һ(sh)пһڔ(sh)

          @һ(sh)е헞1ι3@һ(sh)еһ헣

          @һ(sh)е헞0헞-1t@һ(sh)еĂι

          _ĽY(ji)Փ­­________________.

           

          鿴𰸺ͽ>>

          M{x||x1|<2}N{x|xx3<0}tMN                                                 

                 A{x|0<x<3}                                          B{x|1<x<2} 

                 C{x|1<x<3}                                      D{x|1<x<0}

          鿴𰸺ͽ>>

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          615                          730                          84                     9                10

          110             12              13                 144

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          16

                    OE//ƽAA1B1B14

          17

          18⣺1ľx-------2

          Oķ̞

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          2OEA̞뽹ct

          EAcAOǡЃɂͬĹct ------------------------------6

          rEA̞-------------8

          r

          EA̞-------------------------------------------------------------10

          3OcNt}t

          Nc˞------------------- 11

          EA佹cF1,F2

          քecA,B-----------------------------------13

          EA佹c,

          ˕r-------------------------------------------15

           

           

           

           

           

           

           

           

           

           

          19

           

          ڢ}

          211                                     4

             2 r r10

           

          22⣺1ɷģ2ʽƽpȥ1ʽã5

          2Ľcʾľx

          ĘO˷̞    10

          23⣺1xֵքe -----2

          2-------------------------------------------------6

          3ϵ(sh)飺

          rչ_ʽϵ(sh)С81----10

          24

           


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