(一)含有axb的积分(a1.
0)
dx1=axbalnaxbC
(axb)dx=
2.
1(axb)1C(1)
a(1)3.
x1=dxaxba2(axbblnaxb)C
x211dx=3(axb)22b(axb)b2lnaxbC 4.a2axb5.
1axbdx=x(axb)blnxC
6.
1aaxbdxlnC =22bxbxx(axb)7.
x1bdx=(lnaxb)C (axb)2a2axbx21b2dx=3(axb2blnaxb)C 8.(axb)2aaxb9.
11axbdxlnC =22b(axb)bxx(axb)(二)含有axb的积分
2(axb)3C 3a2311.xaxbdx=(3ax2b)(axb)C 215a2212.xaxbdx=(15a2x212abx8b2)(axb)3C 3105a10.
axbdx=13.
x2dx=2(ax2b)axbC
3aaxbx22222dx=(3ax4abx8b)axbC 315aaxb14.
dx15.=xaxb16.
1lnbaxbbC(b0)axbb
2axbarctanC(b0)bbx2dxaxbadx= bx2bxaxbaxb17.
axbdxdx=2axbb xxaxbaxbaxbadxdx= 2xx2xaxb218.
(三)含有x19.
a2的积分
dx1x=arctanC x2a2aadxx2n3dx=(x2a2)n2(n1)a2(x2a2)n12(n1)a2(x2a2)n1 1xadxln=x2a22axaC
220.
21.
(四)含有axb(a0)的积分
1arctandxab22.2=axb1ln2ab23.
axCb(b0)
axbC(b0)axbx12=dxlnaxbC ax2b2ax2xbdxdx=224.2
axbaaaxbdx1x2lnC 25.=
x(ax2b)2bax2b26.
dx1adx=x2(ax2b)bxbax2b
27.dxaax2b1x3(ax2b)=2b2lnx22bx2C
28.
dxx(ax2b)2=2b(ax2b)1dx2bax2b
(五)含有ax2bxc(a0)的积分
22axdx4acb2arctanb4acb2C29.ax2bxc=12axbb24acb24acln2axbb24acC30.
x12bdxax2bxcdx=2alnaxbxc2aax2bxc(六)含有x2a2(a0)的积分
31.
dx=arshxx2a2aC1=ln(xx2a2)C 32.
dxx(x2a2)3=a2x2a2C
33.
xx2a2dx=x2a2C
34.
x(x2a2)3dx=1x2a2C
35.
x2xx2a2dx=2x2a2a22ln(xx2a2)C 236.
x(x2a2)3dx=xx2a2ln(xx2a2)C
.dx1x2a237axx2a2=alnxC 38.
dx2=x2a2x2ax2a2xC 39.
x2a2dx=xx2aa22ln(xx2a222)C (b24ac)(b24ac)
x34223222222(xa)dx=(2x5a)xaaln(xxa)C 8812241.xxadx=(x2a2)3C
340.42.x2xa42222xadx=(2xa)xaln(xx2a2)C
882243.
x2a2x2a2a22dx=xaalnC xxx2a2x2a222dxln(xxa)C =2xx44.
(七)含有x2a2(a0)的积分
=
45.
dxx2a2xxarchC1=lnxx2a2C xa=46.
dx(xa)xx2a2223xa2xa22C
47.
dx=x2a2C
48.
x(xa)223dx=1xa22C
49.
xx2a22xalnxx2a2C dx=22x2a2x250.
x2(x2a2)3dxx2a2dx=xx2a2lnxx2a2C
51.=1aarccosC ax52.
x2x2a2C =222axxadx53.
x2a22xalnxx2a2C xadx=222254.
x3(x2a2)3dx=(2x25a2)x2a2a4lnxx2a2C
8855.xxadx=221(x2a2)3C 356.x2xa42222xadx=(2xa)xalnxx2a2C
882257.
ax2a2dx=x2a2aarccosC
xxx2a2x2a222dxlnxxaC =2xx58.
(八)含有a2x2(a0)的积分
=arcsin59.
dxa2x2xC axC
60.
dx(ax)xa2x2223=a2ax2261.
dx=a2x2C
62.
x(ax)223dx=1ax22C
63.
x2a2x2axarcsinC dx=22aa2x2x264.
x2(a2x2)3dxdx=xa2x2arcsinxC a1aa2x2C 65.=ln22axxax66.
x2a2x2C =222axaxdx67.
x2a2x2axarcsinC axdx=22a22x34x2232222(ax)dx(5a2x)axaarcsinC =88a122(a2x2)3C 69.xaxdx=368.
70.x2xa4x2222axdx=(2xa)axarcsinC
88a2271.
a2x2aa2x222dx=axalnC xxa2x2a2x2xdxarcsinC =x2xa72.
(九)含有ax2bxc(a0)的积分
dx=73.
ax2bxc1ln2axb2aax2bxcC a74.
ax2bxcdx=xax2bxcdxcbxax222axbax2bxc 4a1ax2bxc a12axbarcsinC
2ab4ac75.
dx=76.
=77.
2axbb24ac2axb2cbxaxdx=cbxaxarcsinC
324a8ab4acxcbxax278.
dx=1b2axbcbxax2arcsinC
32a2ab4ac(十)含有xa或(xa)(bx)的积分 xbxb)C
79.
xaxadx=(xb)(ba)ln(xaxbxb80.
xaxaxadx=(xb)(ba)arcsinC bxbxbx81.
xadxC=2arcsinbx(xa)(bx)(ab)
82.
2xab(ba)2xa(xa)(bx)arcsinC (xa)(bx)dx=44bx(十一)含有三角函数的积分
83.84.85.86.
sinxdx=cosxC cosxdx=sinxC tanxdx=lncosxC cotxdx=lnsinxC
xlntan()C=lnsecxtanxC =secxdx4287.
88.
cscxdx=lntansec2xC=lncscxcotxC 289.90.91.92.93.
xdx=tanxC
2cscxdx=cotxC
secxtanxdx=secxC cscxcotxdx=cscxC
2sinxdx=
x1sin2xC 24x1294.cosxdx=sin2xC
241n1n1nn295.sinxdx=sinxcosxsinxdx nn1n1nn1n296.cosxdx=cosxsinxcosxdx
nndx1cosxn2dx97.= sinnxn1sinn1xn1sinn2xdx1sinxn2dx98.= nn1n2cosxn1cosxn1cosx1m1mnm2n99.cosxsinxdx=cosm1xsinn1xcosxsinxdx
mnmn1n1cosm1xsinn1xcosmxsinn2xdx =mnmn100.
sinaxcosbxdx=sinaxsinbxdx=11cos(ab)xcos(ab)xC
2(ab)2(ab)11sin(ab)xsin(ab)xC
2(ab)2(ab)101.
102.
cosaxcosbxdx=
11sin(ab)xsin(ab)xC
2(ab)2(ab)103.
2dx=absinxa2b2arctanatanxb2C22ab(a2b2)
x22bbadx12104.=lnC22xabsinx22baatanbba2atan105.
(a2b2)
2ababxdxarctan(tan)C=abcosxababab2(a2b2)
xdx1ab2106.=lnabcosxabbaxtan2tan107.
abbaCabba(a2b2)
dx1b=arctan(tanx)C a2cos2xb2sin2xaba1btanxadxln=a2cos2xb2sin2x2abbtanxaC
108.
11sinaxxcosaxC 2aa12222110.xsinaxdx=xcosax2xsinax3cosaxC
aaa11111.xcosaxdx=2cosaxxsinaxC
aa12222112.xcosaxdx=xsinax2xcosax3sinaxC
aaa(十二)含有反三角函数的积分(其中a0)
xx22113.arcsindx=xarcsinaxC
aa109.
xsinaxdx=
x2a2xx2x)arcsinax2C 114.xarcsindx=(24a4ax3x1xarcsin(x22a2)a2x2C 115.xarcsindx=3a9a2116.
xx22arccosdxxarccosaxC =aax2a2xx2x)arccosax2C 117.xarccosdx=(24a4ax3x1xarccos(x22a2)a2x2C 118.xarccosdx=3a9a2xxa22=arctandxxarctanln(ax)C aa2x12xa2120.xarctandx=(ax)arctanxC
a2a2119.
x3xa2a3xarctanxln(a2x2)C 121.xarctandx=3a66a2(十三)含有指数函数的积分
1xaC lna1axax123.edx=eC
a1axax124.xedx=2(ax1)eC
a1naxnn1axnax125.xedx=xexedx
aa122.
xadx=
126.
xxadx=
xx1xaaC 2lna(lna)1nxnn1xxaxadx lnalna1axax128.esinbxdx=2e(asinbxbcosbx)C 2ab1ax129.ecosbxdx=2eax(bsinbxacosbx)C 2ab1axnaxn1130.esinbxdx=2esinbx(asinbxnbcosbx) 22abn1axnaxn1131.ecosbxdx=2ecosbx(acosbxnbsinbx) 22abn127.
nxxadx=
(十四)含有对数函数的积分 132.133.
lnxdx=xlnxxC
dxxlnx=lnlnxC
1n11nx(lnx)C 134.xlnxdx=
n1n1135.
nnx(lnx)n(lnx)dx (lnx)dx=n1136.
mnx(lnx)dx=1nmn1xm1(lnx)nx(lnx)dx m1m1(十五)含有双曲函数的积分 137.138.139.140.
shxdx=chxC chxdx=shxC thxdx=lnchxC
2shxdx=x1sh2xC 24x12141.chxdx=sh2xC
24(十六)定积分 142.143.
cosnxdx=sinnxdx=0
cosmxsinnxdx=0
144.
0,mncosmxcosnxdx= ,mn0,mn145.sinmxsinnxdx=
,mn146.
0sinmxsinnxdx=2000,mncosmxcosnxdx=
,mn2147. In= In=
sinxdx=cosnxdx
n20n1In2 nn1n3 InLnn2n1n3InLnn242 (n为大于1的正奇数),I1=1 5331(n为正偶数),I0= 4222
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