¸ø³öÏÂÁÐÁù¸öÃüÌ⣺
¢Ùsin1£¼3sin
1
3
£¼5sin
1
5

¢ÚÈôf'£¨x0£©=0£¬Ôòº¯Êýy=f£¨x£©ÔÚx=x0È¡µÃ¼«Öµ£»
¢Û¡°?x0¡ÊR£¬Ê¹µÃex0£¼0¡±µÄ·ñ¶¨ÊÇ£º¡°?x¡ÊR£¬¾ùÓÐex¡Ý0¡±£»
¢ÜÒÑÖªµãGÊÇ¡÷ABCµÄÖØÐÄ£¬¹ýG×÷Ö±ÏßÓëAB£¬ACÁ½±ß·Ö±ð½»ÓÚM£¬NÁ½µã£¬ÇÒ
AM
=x
AB
£¬
AN
=y
AC
£¬Ôò
1
x
+
1
y
=3
£»
¢ÝÒÑÖªa=
¡Ò
¦Ð
0
sinxdx£¬
µã(
3
£¬a)
µ½Ö±Ïß
3
x-y+1=0
µÄ¾àÀëΪ1£»
¢ÞÈô|x+3|+|x-1|¡Üa2-3a£¬¶ÔÈÎÒâµÄʵÊýxºã³ÉÁ¢£¬ÔòʵÊýa¡Ü-1£¬»òa¡Ý4£»
ÆäÖÐÕæÃüÌâÊÇ
¢Ù¢Û¢Ü¢Ý
¢Ù¢Û¢Ü¢Ý
£¨°ÑÄãÈÏΪÕæÃüÌâÐòºÅ¶¼ÌîÔÚºáÏßÉÏ£©
·ÖÎö£º¶ÔÓÚ¢Ù¿¼²éº¯Êýy=xsin
1
x
£¬¸Ãº¯ÊýÔÚ£¨
¦Ð
4
£¬+¡Þ£©Éϵ¥µ÷ÐÔ£¬¼´¿ÉÅж¨Õæ¼Ù£¬¶ÔÓÚ¢Úy=x3ÔÚx=0´¦Ã»Óм«Öµ£¬¶ÔÓÚ¢Û¸ù¾ÝÃüÌâµÄ·ñ¶¨½«Ìõ¼þºÍ½áÂÛͬʱ·ñ¶¨£¬¿É½øÐÐÅж¨Õæ¼Ù£¬¶ÔÓڢܸù¾ÝÏòÁ¿µÄ¹²Ï߶¨Àí½øÐÐÇó½â£¬¶ÔÓÚ¢ÝÏȸù¾Ý¶¨»ý·ÖÇó³öa£¬È»ºóÀûÓõ㵽ֱÏߵľàÀ빫ʽ½øÐÐÇó½â£¬¶ÔÓÚ¢Þ|x+3|+|x-1|ÎÞ×î´óÖµ£¬²»´æÔÚaʹ֮³ÉÁ¢£®
½â´ð£º½â£º¢Ù¿¼²ìº¯Êýy=xsin
1
x
£¬¸Ãº¯ÊýÔÚ£¨
¦Ð
4
£¬+¡Þ£©Éϵ¥µ÷µÝÔö£¬¶ø1£¼3£¼5£¬Ôòsin1£¼3sin
1
3
£¼5sin
1
5
£¬¹ÊÕýÈ·£»
¢ÚÈôf'£¨x0£©=0£¬Ôòº¯Êýy=f£¨x£©ÔÚx=x0²»Ò»¶¨È¡µÃ¼«Öµ£¬Èçy=x3ÔÚx=0´¦Ã»Óм«Öµ£¬¹Ê²»ÕýÈ·£»
¢Û¡°?x0¡ÊR£¬Ê¹µÃex0£¼0¡±µÄ·ñ¶¨½«Ìõ¼þºÍ½áÂÛͬʱ·ñ¶¨£¬Ôò£º¡°?x¡ÊR£¬¾ùÓÐex¡Ý0¡±£¬¹ÊÕýÈ·£»
¢Ü¸ù¾ÝÌâÒâGΪÈý½ÇÐεÄÖØÐÄ£¬
AG
=
1
3
£¨
AB
+
AC
£©£¬
MG
=
AG
-
AM
=
1
3
£¨
AB
+
AC
£©-x
AB
=(
1
3
-x)
AB
+
1
3
AC
£¬
GN
=
AN
-
AG
=y
AC
-
AG

=y
AC
-
1
3
(
AB
+
AC
)

=(y-
1
3
)
AC
-
1
3
AB
£¬
ÓÉÓÚ
MG
Óë
GN
¹²Ïߣ¬¸ù¾Ý¹²ÏßÏòÁ¿»ù±¾¶¨ÀíÖª£¬´æÔÚʵÊý¦Ë£¬Ê¹µÃ
MG
=¦Ë
GN
£¬
¼´ (
1
3
-x)
AB
+
1
3
AC
¦Ë[(y-
1
3
)
AC
-
1
3
AB
]
£¬
¼´
1
3
-x=-
1
3
¦Ë
1
3
=¦Ë(y-
1
3
)

¡à
1
3
-x
-
1
3
=
1
3
y-
1
3

¼´x+y-3xy=0
Á½±ßͬ³ýÒÔxyÕûÀíµÃ
1
x
+
1
y
=3£¬¹ÊÕýÈ·£»
¢Ý¶¨»ý·Ö
¡Ò
¦Ð
0
sinxdx
=£¨-cosx£©|0¦Ð=1+1=2£¬¸ù¾Ýµãµ½Ö±ÏߵľàÀ빫ʽ¿Éµã(
3
£¬2)
µ½Ö±Ïß
3
x-y+1=0
µÄ¾àÀëΪ1£¬¹ÊÕýÈ·£»
¢ÞÈô|x+3|+|x-1|¡Üa2-3a£¬¶ÔÈÎÒâµÄʵÊýxºã³ÉÁ¢£¬Ôòa2-3a¡Ý£¨|x+3|+|x-1|£©max£¬¶ø|x+3|+|x-1|ÎÞ×î´óÖµ£¬¹Ê²»ÕýÈ·£»
¹Ê´ð°¸Îª£º¢Ù¢Û¢Ü¢Ý
µãÆÀ£º±¾ÌâÖ÷Òª¿¼²éÁ˺¯ÊýÖµµÄ´óС±È½Ï¡¢¼«Öµ´æÔÚµÄÌõ¼þ¡¢¶¨»ý·ÖºÍµãµ½Ö±ÏߵľàÀë¡¢ºã³ÉÁ¢µÈÓйØÎÊÌ⣬ÊÇÒ»µÀ×ÛºÏÌ⣬¿¼²éµÄ֪ʶµã½Ï¶à£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÊýѧ À´Ô´£º ÌâÐÍ£º

¸ø³öÏÂÁÐÁù¸öÃüÌ⣺
£¨1£©Èôf£¨x-1£©=f£¨1-x£©£¬Ôòº¯Êýf£¨x£©µÄͼÏó¹ØÓÚÖ±Ïßx=1¶Ô³Æ£®
£¨2£© y=f£¨x-1£©Óëy=f£¨1-x£©µÄͼÏó¹ØÓÚÖ±Ïßx=0¶Ô³Æ£®
£¨3£©y=f£¨x+3£©µÄ·´º¯ÊýÓëy=f-1£¨x+3£©ÊÇÏàͬµÄº¯Êý£®
£¨4£©y=(
1
2
)|x|-sin2x+2009
ÎÞ×î´óÖµÒ²ÎÞ×îСֵ£®
£¨5£©y=
2tanx
1-tan2x
µÄÖÜÆÚΪ¦Ð
£¨6£©y=sinx£¨0¡Üx¡Ü2¦Ð£©ÓжԳÆÖáÁ½Ìõ£¬¶Ô³ÆÖÐÐÄÈý¸ö£®
ÔòÕýÈ·ÃüÌâµÄ¸öÊýÊÇ£¨¡¡¡¡£©
A¡¢1¸öB¡¢2¸öC¡¢3¸öD¡¢0¸ö

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÊýѧ À´Ô´£º ÌâÐÍ£º

¸ø³öÏÂÁÐÁù¸öÃüÌ⣬ÆäÖÐÕýÈ·µÄÃüÌâÊÇ
 

¢Ù´æÔÚ¦ÁÂú×ãsin¦Á+cos¦Á=
3
2
£»
¢Úy=sin£¨
5
2
¦Ð-2x£©ÊÇżº¯Êý£»
¢Ûx=
¦Ð
8
ÊÇy=sin£¨2x+
5¦Ð
4
£©µÄÒ»Ìõ¶Ô³ÆÖ᣻
¢Üy=esin2xÊÇÒÔ¦ÐΪÖÜÆڵģ¨0£¬
¦Ð
2
£©ÉϵÄÔöº¯Êý£»
¢ÝÈô¦Á¡¢¦ÂÊǵÚÒ»ÏóÏ޽ǣ¬ÇÒ¦Á£¾¦Â£¬Ôòtan¦Á£¾tan¦Â£»
¢Þº¯Êýy=3sin£¨2x+
¦Ð
3
£©µÄͼÏó¿ÉÓÉy=3sin2xµÄͼÏóÏò×óƽÒÆ
¦Ð
3
¸öµ¥Î»µÃµ½£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÊýѧ À´Ô´£º ÌâÐÍ£º

£¨2012•ÇàÖÝÊÐÄ£Ä⣩¸ø³öÏÂÁÐÁù¸öÃüÌ⣺
¢Ùº¯Êýf£¨x£©=lnx-2+xÔÚÇø¼ä£¨1£¬e£©ÉÏ´æÔÚÁãµã£»
¢ÚÈôf¡ä£¨x0£©=0£¬Ôòº¯Êýy=f£¨x£©ÔÚx=x0´¦È¡µÃ¼«Öµ£»
¢ÛÈôm¡Ý-1£¬Ôòº¯Êýy=log
1
2
(x2-2x-m)
µÄÖµÓòΪR£»
¢Ü¡°a=1¡±ÊÇ¡°º¯Êýf(x)=
a-ex
1+aex
ÔÚ¶¨ÒåÓòÉÏÊÇÆ溯Êý¡±µÄ³ä·Ö²»±ØÒªÌõ¼þ£®
¢Ýº¯Êýy=f£¨1+x£©µÄͼÏóÓ뺯Êýy=f£¨l-x£©µÄͼÏó¹ØÓÚyÖá¶Ô³Æ£»
¢ÞÂú×ãÌõ¼þAC=
3
£¬¡ÏB=60¡ã
£¬AB=1µÄÈý½ÇÐΡ÷ABCÓÐÁ½¸ö£®
ÆäÖÐÕýÈ·ÃüÌâµÄ¸öÊýÊÇ
¢Ù¢Û¢Ü¢Ý
¢Ù¢Û¢Ü¢Ý
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÊýѧ À´Ô´£º´óÁ¬¶þÊ®ÈýÖÐѧ2011ѧÄê¶È¸ß¶þÄ꼶ÆÚÄ©²âÊÔÊÔ¾íÊýѧ£¨Àí£© ÌâÐÍ£ºÌî¿ÕÌâ

¹ØÓÚ£¬¸ø³öÏÂÁÐÁù¸öÃüÌ⣺£¨1£©ÈôÊÇ

ÖÜÆÚº¯Êý£»£¨2£©Èô£¬ÔòΪÆ溯Êý£»£¨3£©Èôº¯ÊýµÄ

ͼÏó¹ØÓڶԳƣ¬ÔòΪżº¯Êý£»£¨4£©º¯ÊýÓ뺯ÊýµÄ

ͼÏó¹ØÓÚÖ±Ï߶Գƣ»£¨5£©Èô£¬ÔòµÄͼÏó¹ØÓڵ㣨1£¬0£©

¶Ô³Æ;£¨6£©Èô£¬ÔòµÄͼÏñ¿ÉÒÔÓɺ¯ÊýµÄͼÏñ½öͨ¹ýƽÒƱä

»»µÃµ½¡£ÔòËùÓÐÕýÈ·ÃüÌâµÄÐòºÅÊÇ   ___¡£

 

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸