积分公式大全
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1 常 用 积 分 公 式
(一)含有axb的积分(0a)
1.dxaxb=1lnaxbCa
2.()daxbx=11()(1)axbCa(1)
3.dxxaxb=21(ln)axbbaxbCa
4.2dxxaxb=22311()2()ln2axbbaxbbaxbCa
5.d()xxaxb=1lnaxbCbx
6.2d()xxaxb=21lnaaxbCbxbx
7.2d()xxaxb=21(ln)baxbCaaxb
8.22d()xxaxb=231(2ln)baxbbaxbCaaxb
9.2d()xxaxb=211ln()axbCbaxbbx
(二)含有axb的积分
10.daxbx=32()3axbCa
11.dxaxbx=322(32)()15axbaxbCa
12.2dxaxbx=222332(15128)()105axabxbaxbCa
13.dxxaxb=22(2)3axbaxbCa 2 14.2dxxaxb=22232(348)15axabxbaxbCa
15.dxxaxb=1ln(0)2arctan(0)axbbCbbaxbbaxbCbbb
16.2dxxaxb=d2axbaxbxbxaxb
17.daxbxx=d2xaxbbxaxb
18.2daxbxx=d2axbaxxxaxb
(三)含有22xa的积分
19.22dxxa=1arctanxCaa
20.22d()nxxa=2221222123d2(1)()2(1)()nnxnxnaxanaxa
21.22dxxa=1ln2xaCaxa
(四)含有2(0)axba的积分
22.2dxaxb=1arctan(0)1ln(0)2axCbbabaxbCbabaxb
23.2dxxaxb=21ln2axbCa 3 24.22dxxaxb=2dxbxaaaxb
25.2d()xxaxb=221ln2xCbaxb
26.22d()xxaxb=21daxbxbaxb
27.32d()xxaxb=22221ln22axbaCbxbx
28.22d()xaxb=221d2()2xxbaxbbaxb
(五)含有2axbxc(0)a的积分
29.2dxaxbxc=222222222arctan(4)44124ln(4)424axbCbacacbacbaxbbacCbacbacaxbbac
30.2dxxaxbxc=221dln22bxaxbxcaaaxbxc
(六)含有22xa(0)a的积分
31.22dxxa=1arshxCa=22ln()xxaC
32.223d()xxa=222xCaxa
33.22dxxxa=22xaC
34.223d()xxxa=221Cxa 4 35.222dxxxa=22222ln()22xaxaxxaC
36.2223d()xxxa=2222ln()xxxaCxa
37.22dxxxa=221lnxaaCax
38.222dxxxa=222xaCax
39.22dxax=22222ln()22xaxaxxaC
40.223()dxax=22224223(25)ln()88xxaxaaxxaC
41.22dxxax=2231()3xaC
42.222dxxax=4222222(2)ln()88xaxaxaxxaC
43.22dxaxx=2222lnxaaxaaCx
44.222dxaxx=2222ln()xaxxaCx
(七)含有22xa(0)a的积分
45.22dxxa=1archxxCxa=22lnxxaC
46.223d()xxa=222xCaxa
47.22dxxxa=22xaC 5 48.223d()xxxa=221Cxa
49.222dxxxa=22222ln22xaxaxxaC
50.2223d()xxxa=2222lnxxxaCxa
51.22dxxxa=1arccosaCax
52.222dxxxa=222xaCax
53.22dxax=22222ln22xaxaxxaC
54.223()dxax=22224223(25)ln88xxaxaaxxaC
55.22dxxax=2231()3xaC
56.222dxxax=4222222(2)ln88xaxaxaxxaC
57.22dxaxx=22arccosaxaaCx
58.222dxaxx=2222lnxaxxaCx
(八)含有22ax(0)a的积分
59.22dxax=arcsinxCa
60.223d()xax=222xCaax 6 61.22dxxax=22axC
62.223d()xxax=221Cax
63.222dxxax=222arcsin22xaxaxCa
64.2223d()xxax=22arcsinxxCaax
65.22dxxax=221lnaaxCax
66.222dxxax=222axCax
67.22daxx=222arcsin22xaxaxCa
68.223()daxx=222243(52)arcsin88xxaxaxaCa
69.22dxaxx=2231()3axC
70.222dxaxx=42222(2)arcsin88xaxxaaxCa
71.22daxxx=2222lnaaxaxaCx
72.222daxxx=22arcsinaxxCxa
(九)含有2axbxc(0)a的积分
73.2dxaxbxc=21ln22axbaaxbxcCa 7 74.2daxbxcx=224axbaxbxca
2234ln228acbaxbaaxbxcCa
75.2dxxaxbxc=21axbxca
23ln222baxbaaxbxcCa
76.2dxcbxax=212arcsin4axbCabac
77.2dcbxaxx=2232242arcsin484axbbacaxbcbxaxCaabac
78.2dxxcbxax=23212arcsin24baxbcbxaxCaabac
(十)含有xaxb或()()xabx的积分
79.dxaxxb=()()ln()xaxbbaxaxbCxb
80.dxaxbx=()()arcsinxaxaxbbaCbxbx
81.d()()xxabx=2arcsinxaCbx()ab
82.()()dxabxx=22()()()arcsin44xabbaxaxabxCbx
()ab
(十一)含有三角函数的积分
83.sindxx=cosxC 8 84.cosdxx=sinxC
85.tandxx=lncosxC
86.cotdxx=lnsinxC
87.secdxx=lntan()42xC=lnsectanxxC
88.cscdxx=lntan2xC=lncsccotxxC
89.2secdxx=tanxC
90.2cscdxx=cotxC
91.sectandxxx=secxC
92.csccotdxxx=cscxC
93.2sindxx=1sin224xxC
94.2cosdxx=1sin224xxC
95.sindnxx=1211sincossindnnnxxxxnn
96.cosdnxx=1211cossincosdnnnxxxxnn
97.dsinnxx=121cos2d1sin1sinnnxnxnxnx
98.dcosnxx=121sin2d1cos1cosnnxnxnxnx
99.cossindmnxxx=11211cossincossindmnmnmxxxxxmnmn
=11211cossincossindmnmnnxxxxxmnmn
100.sincosdaxbxx=11cos()cos()2()2()abxabxCabab 9 101.sinsindaxbxx=11sin()sin()2()2()abxabxCabab
102.coscosdaxbxx=11sin()sin()2()2()abxabxCabab
103.dsinxabx=2222tan22arctanxabCabab22()ab
104.dsinxabx=222222tan12lntan2xabbaCxbaabba22()ab
105.dcosxabx=2arctan(tan)2ababxCababab22()ab
106.dcosxabx=tan12lntan2xababbaCabbaxabba22()ab
107.2222dcossinxaxbx=1arctan(tan)bxCaba
108.2222dcossinxaxbx=1tanln2tanbxaCabbxa
109.sindxaxx=211sincosaxxaxCaa
110.2sindxaxx=223122cossincosxaxxaxaxCaaa
111.cosdxaxx=211cossinaxxaxCaa
112.2cosdxaxx=223122sincossinxaxxaxaxCaaa
(十二)含有反三角函数的积分(其中0a)
113.arcsindxxa=22arcsinxxaxCa