Wb/yue/微積分學/導數表

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Revision as of 16:54, 19 September 2023 by imported>Jonashtand (双曲同反双曲函數: // Edit via Wikiplus)
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運算法則

  • ddx(f+g)=dfdx+dgdx
  • ddx(cf)=cdfdx
  • ddx(fg)=fdgdx+gdfdx
  • ddx(fg)=fdgdx+gdfdxg2
  • ddx[f(g(x))]=dfdgdgdx=f(g(x))g(x)
  • dndxnf(x)g(x)=i=0n(ni)f(ni)(x)g(i)(x)
  • ddx(1f)=ff2

冪函數同多項式

  • ddx(c)=0
  • ddxx=1
  • ddxxn=nxn1
  • ddxx=12x
  • ddx1x=1x2
  • ddx(cnxn+cn1xn1+cn2xn2++c2x2+c1x+c0)=ncnxn1+(n1)cn1xn2+(n2)cn2xn3++2c2x+c1

三角函數

  • ddxsin(x)=cos(x)
  • ddxcos(x)=sin(x)
  • ddxtan(x)=sec2(x)
  • ddxcot(x)=csc2(x)
  • ddxsec(x)=sec(x)tan(x)
  • ddxcsc(x)=csc(x)cot(x)

指數同對數函數

  • ddxex=ex
  • ddxax=axln(a)a>0
  • ddxln(x)=1x
  • ddxloga(x)=1xln(a)a>0 , a1
  • ddx(fg)=ddx(egln(f))=fg(fgf+gln(f))f>0
  • ddx(cf)=ddx(efln(c))=cfln(c)f

反三角函數

  • ddxarcsin(x)=11x2
  • ddxarccos(x)=11x2
  • ddxarctan(x)=1x2+1
  • ddxarccot(x)=1x2+1
  • ddxarcsec(x)=1|x|x21
  • ddxarccsc(x)=1|x|x21

雙曲同反雙曲函數

  • ddxsinh(x)=cosh(x)
  • ddxcosh(x)=sinh(x)
  • ddxtanh(x)=sech2(x)
  • ddxsech(x)=tanh(x)sech(x)
  • ddxcoth(x)=csch2(x)
  • ddxcsch(x)=coth(x)csch(x)
  • ddxarsinh(x)=11+x2
  • ddxarcosh(x)=1x21 , x>1
  • ddxartanh(x)=11x2 , |x|<1
  • ddxarcsch(x)=1|x|1+x2 , x0
  • ddxarsech(x)=1x1x2 , 0<x<1
  • ddxarcoth(x)=11x2 , |x|>1

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