利用数列极限的定义证明极限:[tex=6.643x2.786]OqU0SQaVHd2x+OGLCy0gvbnBdqyRL3fXll51asuCZWnhRqsKxAfB+RVzpHXh/K3s7nwHnn1UPBmlejRVcdpWlg==[/tex]
利用数列极限的定义证明极限:[tex=6.643x2.786]OqU0SQaVHd2x+OGLCy0gvbnBdqyRL3fXll51asuCZWnhRqsKxAfB+RVzpHXh/K3s7nwHnn1UPBmlejRVcdpWlg==[/tex]
说明当[tex=0.857x1.0]+NBI8Pm2vVS+bGgOpHKyOA==[/tex]足够大时,应该如何计算[tex=6.643x2.786]Cn8XQvyy6JSUhdSFPvyyDkQRECnrsTZKqIZci7W/J0rFuxSaAVp19H2Sqq+NH8dI[/tex]
说明当[tex=0.857x1.0]+NBI8Pm2vVS+bGgOpHKyOA==[/tex]足够大时,应该如何计算[tex=6.643x2.786]Cn8XQvyy6JSUhdSFPvyyDkQRECnrsTZKqIZci7W/J0rFuxSaAVp19H2Sqq+NH8dI[/tex]
利用定积分近似计算[tex=0.571x0.786]HN62gm6+SkkBEzf/f4stEA==[/tex]的值:证明公式[tex=6.643x2.786]UfYvnCp3HkNrDL4a/+GTwTN5xepYI1FbTcukmF4+zdeFt9WmSbWCVnLUVCotzYg2tBUvOuB+Fra0JR9DJ1hKJQ==[/tex].
利用定积分近似计算[tex=0.571x0.786]HN62gm6+SkkBEzf/f4stEA==[/tex]的值:证明公式[tex=6.643x2.786]UfYvnCp3HkNrDL4a/+GTwTN5xepYI1FbTcukmF4+zdeFt9WmSbWCVnLUVCotzYg2tBUvOuB+Fra0JR9DJ1hKJQ==[/tex].
设[tex=2.0x1.214]IENxQEh5u4RdnCaqHm72Xg==[/tex]为正定矩阵,证明分块对角矩阵[tex=6.643x2.786]Nw/iCPiBfAazOGg7nvEajgPBAQuUM8o217spfRqUWnvKn6MUeZ+gJ/BH9Xgze23H2LbbuUCHbmybt74rPJ3O9Q==[/tex]也是正定矩阵。
设[tex=2.0x1.214]IENxQEh5u4RdnCaqHm72Xg==[/tex]为正定矩阵,证明分块对角矩阵[tex=6.643x2.786]Nw/iCPiBfAazOGg7nvEajgPBAQuUM8o217spfRqUWnvKn6MUeZ+gJ/BH9Xgze23H2LbbuUCHbmybt74rPJ3O9Q==[/tex]也是正定矩阵。
设积分围线O是圆[tex=2.357x1.357]DDFhUZ/62p4StcnGM+NIUA==[/tex]求下列积分:[tex=6.643x2.786]wvNuAAYG7Vu/7O8AwcQ2qgzPfRUG+CJRVwYeQ7unDrRUkgl1r2wfptypDdD5P3MN0dvW2FGXw5JpmQ7w0r8ojQ==[/tex]
设积分围线O是圆[tex=2.357x1.357]DDFhUZ/62p4StcnGM+NIUA==[/tex]求下列积分:[tex=6.643x2.786]wvNuAAYG7Vu/7O8AwcQ2qgzPfRUG+CJRVwYeQ7unDrRUkgl1r2wfptypDdD5P3MN0dvW2FGXw5JpmQ7w0r8ojQ==[/tex]
取[tex=6.643x1.286]IOA/B1HSu7wZU74OGbS+Ig==[/tex][tex=6.643x2.786]0jL1EHm7XMFv3/WsZdrolKodJV4SbzGOSlLtiIJMxbR7Y0xelrSvWoGsseyUU9ANdxgrKPQaSKvDZIdYVw+F5g==[/tex], 验证[tex=9.571x3.071]mqOKs44jrJgbK/+3e5yEgQvOlYwlVCS8ck4Fl652TJ870MDUs0CwI3ho2gc14wvU/+tiV06B3/eguknJJ5U8swzixTq7mpCFaquvFCmQRaZACMOObyJZvSfzDjTZKp813keeQsmEqSzTpArPY/2/Ogykm2Q9Foxv9RR3cfet2Is=[/tex].
取[tex=6.643x1.286]IOA/B1HSu7wZU74OGbS+Ig==[/tex][tex=6.643x2.786]0jL1EHm7XMFv3/WsZdrolKodJV4SbzGOSlLtiIJMxbR7Y0xelrSvWoGsseyUU9ANdxgrKPQaSKvDZIdYVw+F5g==[/tex], 验证[tex=9.571x3.071]mqOKs44jrJgbK/+3e5yEgQvOlYwlVCS8ck4Fl652TJ870MDUs0CwI3ho2gc14wvU/+tiV06B3/eguknJJ5U8swzixTq7mpCFaquvFCmQRaZACMOObyJZvSfzDjTZKp813keeQsmEqSzTpArPY/2/Ogykm2Q9Foxv9RR3cfet2Is=[/tex].
求[tex=6.643x2.786]eY5sIca5KoZ170mC1C3nmQKumeRERFntpoFQELnESmove0sKWMl2qDZtwu2k/Wf1cyZjLKxiKgqWaKBrQI8Yfw==[/tex]的一阶偏导数(其中[tex=0.5x1.214]gNOHIx2AGu3qP//Yn7oxrg==[/tex]具有一阶连续偏导数)
求[tex=6.643x2.786]eY5sIca5KoZ170mC1C3nmQKumeRERFntpoFQELnESmove0sKWMl2qDZtwu2k/Wf1cyZjLKxiKgqWaKBrQI8Yfw==[/tex]的一阶偏导数(其中[tex=0.5x1.214]gNOHIx2AGu3qP//Yn7oxrg==[/tex]具有一阶连续偏导数)
设[tex=2.429x1.429]/FYTUVhgTPYa3RqQR+bSSUbbTeGKbswSGYv23j+moEA=[/tex]在[tex=2.0x1.357]RsyhLJCoU2qgi7ef8EDOMg==[/tex]上连续,且[tex=10.357x1.429]14/aq/UVcHqGTKwzMK1/RgUEhwoz5utPcQomY13OTwvFY3EZQIYIU5AfXG3ADFyh[/tex] 求[tex=6.643x2.786]OBhSuiadSRdctLrU9a3zDqGW+Itx7dziKhmrTtU7xOE4zmKY8htaMizg3eWR0mUDx1b1+X6F3VUZIjs+EpMCIw==[/tex][br][/br]
设[tex=2.429x1.429]/FYTUVhgTPYa3RqQR+bSSUbbTeGKbswSGYv23j+moEA=[/tex]在[tex=2.0x1.357]RsyhLJCoU2qgi7ef8EDOMg==[/tex]上连续,且[tex=10.357x1.429]14/aq/UVcHqGTKwzMK1/RgUEhwoz5utPcQomY13OTwvFY3EZQIYIU5AfXG3ADFyh[/tex] 求[tex=6.643x2.786]OBhSuiadSRdctLrU9a3zDqGW+Itx7dziKhmrTtU7xOE4zmKY8htaMizg3eWR0mUDx1b1+X6F3VUZIjs+EpMCIw==[/tex][br][/br]
设[tex=7.357x2.786]QN0fTQbn6M33pU3gx/S2sutq78tFUBx9vJiETfRTfe14vYn1Kb5QkB/K4hMTM8CEx5kVwi05+Uz6DB9TfXx/pg==[/tex],[tex=6.643x2.786]DgXZT9CtCPAglTYwc4pEddkkOcQAjgKxETi/AN6oHkGeNPVIHc5+63xG+cqJQZSr/K5Cee1Cl7DsSkDJIEwM/g==[/tex],若矩阵[tex=3.857x1.0]2vsdMb7+BKP822EunIcDYA==[/tex],求[tex=0.571x0.786]7G1MINzwputr5mgALyjQfA==[/tex],[tex=0.429x1.0]JThLUuJ8WswSAPiYZWihWg==[/tex]的值.
设[tex=7.357x2.786]QN0fTQbn6M33pU3gx/S2sutq78tFUBx9vJiETfRTfe14vYn1Kb5QkB/K4hMTM8CEx5kVwi05+Uz6DB9TfXx/pg==[/tex],[tex=6.643x2.786]DgXZT9CtCPAglTYwc4pEddkkOcQAjgKxETi/AN6oHkGeNPVIHc5+63xG+cqJQZSr/K5Cee1Cl7DsSkDJIEwM/g==[/tex],若矩阵[tex=3.857x1.0]2vsdMb7+BKP822EunIcDYA==[/tex],求[tex=0.571x0.786]7G1MINzwputr5mgALyjQfA==[/tex],[tex=0.429x1.0]JThLUuJ8WswSAPiYZWihWg==[/tex]的值.
下列变量组()是一个闭回路。 A: {x,x,x,x,x,x} B: {x,x,x,x,x} C: {x,x,x,x,x,x} D: {x,x,x,x,x,x}
下列变量组()是一个闭回路。 A: {x,x,x,x,x,x} B: {x,x,x,x,x} C: {x,x,x,x,x,x} D: {x,x,x,x,x,x}