4-4

4-4习题44求下列不定积分:1.dxxx33;解dxxxxxdxxxdxxx327)93)(3(327273233dxxdxxx3127)93(2Cxxxx|3|ln279233123.2.dxxxx103322;解Cxxxxdxxdxxxx|103|ln)103(1031103322222.3.dxxxxx3458;解dxxxxxdxxxdxxxxx3223458)1(8dxxdxxdxxxxx13148213123Cxxxxxx|1|ln3|1|ln4||ln8213123.4.dxx133;解dxxxxxxxdxxxxxdxx)11231122111()1211(132223)21()23()21(123)1(1121|1|ln2222xdxxxdxxxCxxxx312arctan31|1|ln2.5.)3)(2)(1(xxxxdx;解dxxxxxxxxdx)331124(21)3)(2)(1(Cxxx|)1|ln|3|ln3|2|(ln21.6.dxxxx)1()1(122;解dxxxxdxxxx])1(111211121[)1()1(1222Cxxx11|1|ln21|1|ln21Cxx11|1|ln212.7.dxxx)1(12;解Cxxdxxxxdxxx)1ln(21||ln)11()1(1222.8.))(1(22xxxdx;解dxxxxxxxxdx)112111211())(1(222dxxxxx1121|1|ln21||ln2dxxdxxxxx11211241|1|ln21||ln22Cxxxxarctan21)1ln(41|1|ln21||ln2.9.)1)(1(22xxxdx;解dxxxxxxxxxdx)111()1)(1(2222)1ln(211121112