ÉèAÊÇÈçÏÂÐÎʽµÄ2ÐÐ3ÁеÄÊý±í£¬
Âú×ãÐÔÖÊP£ºa£¬b£¬c£¬d£¬e£¬f¡Ê[£1£¬1]£¬ÇÒa£«b£«c£«d£«e£«f£½0£®
¼Çri(A)ΪAµÄµÚiÐи÷ÊýÖ®ºÍ(i£½1£¬2)£¬Cj(A)ΪµÚjÁи÷ÊýÖ®ºÍ(j£½1£¬2£¬3)£»¼Çk(A)Ϊ|r1(A)|£¬|r2(A)|£¬|c1(A)|£¬|c2(A)|£¬|c3(A)|ÖеÄ×îСֵ£®
(¢ñ)¶ÔÈçÏÂÊý±íA£¬Çók(A)µÄÖµ
(¢ò)ÉèÊý±íAÐÎÈç
ÆäÖУ1¡Üd¡Ü0£®Çók(A)µÄ×î´óÖµ£»
(¢ó)¶ÔËùÓÐÂú×ãÐÔÖÊPµÄ2ÐÐ3ÁеÄÊý±íA£¬Çók(A)µÄ×î´óÖµ
Ä꼶 | ¸ßÖÐ¿Î³Ì | Ä꼶 | ³õÖÐ¿Î³Ì |
¸ßÒ» | ¸ßÒ»Ãâ·Ñ¿Î³ÌÍƼö£¡ | ³õÒ» | ³õÒ»Ãâ·Ñ¿Î³ÌÍƼö£¡ |
¸ß¶þ | ¸ß¶þÃâ·Ñ¿Î³ÌÍƼö£¡ | ³õ¶þ | ³õ¶þÃâ·Ñ¿Î³ÌÍƼö£¡ |
¸ßÈý | ¸ßÈýÃâ·Ñ¿Î³ÌÍƼö£¡ | ³õÈý | ³õÈýÃâ·Ñ¿Î³ÌÍƼö£¡ |
¿ÆÄ¿£º¸ßÖÐÊýѧ À´Ô´£º ÌâÐÍ£º
a | b | c |
d | e | f |
1 | 1 | -0.8 |
0.1 | -0.3 | -1 |
1 | 1 | -1-2d |
d | d | -1 |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÊýѧ À´Ô´£º¸ß¿¼ÕæÌâ ÌâÐÍ£º½â´ðÌâ
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÊýѧ À´Ô´£º2012Äê±±¾©Êи߿¼ÊýѧÊÔ¾í£¨ÎÄ¿Æ£©£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ
a | b | c |
d | e | f |
1 | 1 | -0.8 |
0.1 | -0.3 | -1 |
1 | 1 | -1-2d |
d | d | -1 |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖÐÊýѧ À´Ô´£º2012ÄêÈ«¹úÆÕͨ¸ßµÈѧУÕÐÉúͳһ¿¼ÊÔÎÄ¿ÆÊýѧ£¨±±¾©¾í½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ
ÉèAÊÇÈçÏÂÐÎʽµÄ2ÐÐ3ÁеÄÊý±í£¬
a |
b |
c |
d |
e |
f |
Âú×ãÐÔÖÊP£ºa£¬b£¬c£¬d£¬e£¬f£¬ÇÒa+b+c+d+e+f=0
¼ÇΪAµÄµÚiÐи÷ÊýÖ®ºÍ£¨i=1,2£©, ΪAµÄµÚjÁи÷ÊýÖ®ºÍ£¨j=1,2,3£©¼ÇΪÖеÄ×îСֵ¡£
£¨1£©¶ÔÈçϱíA£¬ÇóµÄÖµ
1 |
1 |
-0.8 |
0.1 |
-0.3 |
-1 |
(2)ÉèÊý±íAÐÎÈç
1 |
1 |
-1-2d |
d |
d |
-1 |
ÆäÖУ¬ÇóµÄ×î´óÖµ
£¨3£©¶ÔËùÓÐÂú×ãÐÔÖÊPµÄ2ÐÐ3ÁеÄÊý±íA£¬ÇóµÄ×î´óÖµ¡£
¡¾½âÎö¡¿£¨1£©ÒòΪ£¬£¬ËùÒÔ
£¨2£©£¬
ÒòΪ£¬ËùÒÔ£¬
ËùÒÔ
µ±d=0ʱ£¬È¡µÃ×î´óÖµ1
£¨3£©ÈθøÂú×ãÐÔÖÊPµÄÊý±íA£¨ÈçͼËùʾ£©
a |
b |
c |
d |
e |
f |
ÈÎÒâ¸Ä±äAµÄÐдÎÐò»òÁдÎÐò£¬»ò°ÑAÖеÄÿ¸öÊý»»³ÉËüµÄÏà·´Êý£¬ËùµÃÊý±íÈÔÂú×ãÐÔÖÊP£¬²¢ÇÒ£¬Òò´Ë£¬²»·ÁÉ裬£¬
Óɵö¨ÒåÖª£¬£¬£¬£¬
´Ó¶ø
ËùÒÔ£¬£¬ÓÉ£¨2£©Öª£¬´æÔÚÂú×ãÐÔÖÊPµÄÊý±íAʹ£¬¹ÊµÄ×î´óֵΪ1
¡¾¿¼µã¶¨Î»¡¿´ËÌâ×÷ΪѹÖáÌâÄѶȽϴ󣬿¼²éѧÉú·ÖÎöÎÊÌâ½â¾öÎÊÌâµÄÄÜÁ¦£¬¿¼²éѧÉúÑϽ÷µÄÂ߼˼άÄÜÁ¦
²é¿´´ð°¸ºÍ½âÎö>>
°Ù¶ÈÖÂÐÅ - Á·Ï°²áÁбí - ÊÔÌâÁбí
ºþ±±Ê¡»¥ÁªÍøÎ¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨Æ½Ì¨ | ÍøÉÏÓк¦ÐÅÏ¢¾Ù±¨×¨Çø | µçÐÅթƾٱ¨×¨Çø | ÉæÀúÊ·ÐéÎÞÖ÷ÒåÓк¦ÐÅÏ¢¾Ù±¨×¨Çø | ÉæÆóÇÖȨ¾Ù±¨×¨Çø
Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com