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        1. O(sh)aRԇ^c1aĴС

           

          𰸣

              (dng)a=0r(sh)

              (dng)a<1r(sh)

              (dng)a>1a0r(sh)

           


          (x)(c)ϵд
          P(gun)(x)}

          ĿД(sh)W(xu) Դ

          ֪(sh)fx=
          2
          3
          x+
          1
          2
          hx=
          x

          O(sh)(sh)Fx=fx-hxFxĆ{(dio)^(q)gcOֵ
          O(sh)aRP(gun)xķ̩S4[
          3
          2
          fx-1-
          3
          4
          ]=log2ha-x-log2h4-x
          ԇ^f100h100-
          100
          k=1
          h(k)
          c
          1
          6
          Ĵ

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          ֪(sh)fx=ax4+bx3+cx2+dx+eabcdRǶxRϵ溯(sh)fxx=
          2
          ̎ȡØOСֵ-
          4
          2
          3
          O(sh)f䣨xʾfxČ(do)(sh)x(sh){an}M㣺an=f䣨
          n
          +2nN*
          (sh){an}ͨ(xing)ʽan
          򣩌(du)mnN*mnC1+
          m
          an
          ܣ1+
          1
          an
          m3
          󣩣ƣԇ^1+
          1
          an
          m+1c1+
          1
          an+1
          m+2ĴС

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ

          O(sh)aRfx=
          a•2x+a-2
          2x+1
          xR
          1_aֵʹfx溯(sh)
          2(dng)fx溯(sh)r(sh)(du)ڽo(sh)(sh)kⲻʽ f-1xlog2
          1+x
          k

          3O(sh)gn=
          n
          n+1
          nN(dng)fx溯(sh)r(sh)ԇ^fncgnĴ

          鿴𰸺ͽ>>

          ĿД(sh)W(xu) Դ 044

          O(sh)aRԇ^c1aĴ

           

          鿴𰸺ͽ>>

          ͬ(x)(c)