Õã½´óѧ2001¼¶Î¢»ý·Ö£¨ÉÏ£©ÆÚÖÕ¿¼ÊÔÊÔ¾í
ϵ__________ °à¼¶__________ ѧºÅ__________
ÐÕÃû__________ ¿¼ÊÔ½ÌÊÒ__________
Ì⠺ŠµÃ ·Ö ÆÀ¾íÈË Ò» ¶þ Èý ËÄ Îå Áù Æß °Ë ×Ü·Ö ¸´ºË µÃ·Ö Ò»¡¢Ñ¡ÔñÌ⣺£¨Ã¿Ð¡Ìâ2·Ö£¬¹²8·Ö£©ÔÚÿÌâµÄËĸöÑ¡ÏîÖУ¬Ö»ÓÐÒ»¸öÊÇÕýÈ·µÄ£¬Çë°ÑÕýÈ·ÄÇÏîµÄ´úºÅÌîÈë¿Õ¸ñÖÐ
1.Éèf(x)?(x?a)(x?b)(x?c)(x?d)£¬ÆäÖÐa£¬b£¬c£¬d»¥²»ÏàµÈ£¬ ÇÒf'(k)?(k?a)(k?b)(k?c) £¬ÔòkµÄÖµµÈÓÚ£¨ £©. £¨A£©.a £¨B£©.b £¨C£©.c £¨D£©.d
2.ÇúÏßy?x2?2x?2£¬µ±x???ʱ£¬ËüÓÐб½¥½øÏߣ¨ £©.
£¨A£©.y?x?1 £¨B£©.y??x?1 £¨C£©.y??x?1 £¨D£©.y?x?1
3.ÏÂÃæµÄËĸöÂÛÊöÖÐÕýÈ·µÄÊÇ£¨ £©.
£¨A£©.¡°º¯Êýf(x)ÔÚ?a,b?ÉÏÓн硱ÊÇ¡°f(x)ÔÚ?a,b?ÉÏ¿É»ý¡±µÄ±ØÒªÌõ¼þ£»
£¨B£©.º¯Êýf(x)ÔÚÇø¼ä?a,b?Äڿɵ¼£¬x0??a,b?£¬ÄÇÄ©f'(x0)?0ÊÇ f(x)ÔÚx0´¦È¡µ½¼«ÖµµÄ³ä·ÖÌõ¼þ£»
£¨C£©.¡°º¯Êýf(x)ÔÚµãx0´¦¿Éµ¼¡±¶ÔÓÚ¡°º¯Êýf(x)ÔÚµãx0´¦¿É΢¡±¶øÑԼȷdzä·ÖÒ²·Ç±ØÒª£»
£¨D£©.¡°º¯Êýf(x)ÔÚÇø¼äEÉÏÁ¬Ðø¡±ÊÇ¡°f(x)ÔÚÇø¼äEÉÏÔº¯Êý´æÔÚ¡±µÄ³äÒªÌõ¼þ.
4.ÏÂÃæËĸöÂÛÊöÖÐÕýÈ·µÄÊÇ£¨ £©. £¨A£©.Èôxn?0 (n?1,2,£¨B£©. Èôxn?0 (n?1,2,)£¬ÇÒ?xn?µ¥µ÷µÝ¼õ£¬Éèlimxn?a£¬Ôòa?0£»
n???)£¬ÇÒlimxn¼«ÏÞ´æÔÚ£¬Éèlimxn?a£¬Ôòa?0£»
n???n???£¨C£©. Èôlimxn?a?0£¬Ôòxn?0(n?1,2,n???)£»
a. 2£¨D£©. Èôlimxn?a?0£¬Ôò´æÔÚÕýÕûÊýN£¬µ±n?Nʱ£¬¶¼ÓÐxn?n???
- 1 -
µÃ·Ö ?
¶þ¡¢Ìî¿ÕÌ⣺£¨Ã¿¿Õ¸ñ2·Ö£¬¹²12·Ö£©Ö»Ìî´ð°¸
tgx1. lim(x?1)x??2=____________£»lim(x?1)x??2tgx?=____________.
2.º¯Êýf(u)¿Éµ¼£¬y?f(xsinx)£¬Ôò
dy=____________. dxexcosex3. ?dx=____________.
sinex 4. µÃ·Ö
Èý¡¢Çó¼«ÏÞ£º£¨Ã¿Ð¡Ìâ7·Ö£¬¹²14·Ö£©
???0sintdt=____________£»?cos5tdt=____________.
501.ÊýÁÐ?xn?ͨÏîxn?
1n?12?1n?22??1n?n2£¬Çólimxn.
n???sint3dt?0t2.Çólim.
x?0x?sinxx µÃ·Ö x
ËÄ¡¢Çóµ¼Êý£º£¨Ã¿Ð¡Ìâ7·Ö£¬¹²21·Ö£©
1. y?x
sinxdy£¬Çó. 21?xdx?x?t2,dyd2y2. ?Çó£¬2. ?y?sint,dxdx
dy3.º¯Êýy?y(x)ÓÉx?y?sinyÈ·¶¨£¬Çó
dx
x?1??2,y??2;d2ydx2
x?1??y??2,2.- 2 -
µÃ·Ö
Îå¡¢Çó»ý·Ö£º£¨Ã¿Ð¡Ìâ7·Ö£¬¹²28·Ö£©
1.Çó
x?1?x(x2?1)dx.
2.Çó 3.Çó
???0sinx?cosxdx.
a02ax?x2dx(a?0).
??24.¼ÆËã µÃ·Ö ??e?xcosxdx.
Áù¡¢£¨6·Ö£©ÏÂÃæÁ½Ìâ×öÒ»Ì⣬ÆäÖÐѧ¹ý³£Î¢·Ö·½³ÌµÄרҵ×öµÚ1Ì⣬δѧ³£Î¢
·Ö·½³ÌµÄרҵ×öµÚ2Ìâ.
?x2dy?(xy?x2)dx,1.Çó½â³£Î¢·Ö·½³Ì£º?
y(1)?1.?
2.ÓÐÒ»°ë¾¶Îª4Ã׵İëÇòÐÎË®³Ø×¢ÂúÁËË®£¬ÏÖÒª°Ñˮȫ²¿³éµ½¾àË®³ØË®Ãæ¸ß6Ã×µÄË®ÏäÄÚ£¬ÎÊÖÁÉÙÒª×ö¶àÉÙ¹¦£¿
µÃ·Ö Æß¡¢£¨6·Ö£©
ÔÚxoyƽÃæÉϽ«Á¬½áÔµãO(0,0)ÓëµãA(1,0)µÄÏ߶ÎOA£¨¼´Çø¼ä?0,1?£©×÷nµÈ·Ö£¬·Öµã(,0)¼Ç×÷Pk£¬¶Ôk?1,2,kn,n?1£¬¹ýPk×÷Å×ÎïÏßy?x2µÄÇÐÏߣ¬ÇеãΪQk.
1.Éè?PQkkAµÄÃæ»ýΪSk£¬ÇóSk£»
1n?12.Çó¼«ÏÞlim?Sk.
n???nk?1 µÃ·Ö
°Ë¡¢Ö¤Ã÷Ì⣨5·Ö£©
Éèf(x)ÔÚ???,???ÉÏÁ¬Ðø£¬ÇÒf(x)?0£¬G(x)??x0tf(x?t)dt.
Ö¤Ã÷£º¶ÔÈÎÒâa,b?(??,??)£¬ÇÒa?b£¬±ØÓÐG(b)?G(a)?G'(a)(b?a)?0.
- 3 -