¸ßÖÐÊýѧ(Ñ¡ÐÞ1-1)µ¥Ôª²âÊÔ-µÚ¶þÕÂÔ²×¶ÇúÏßÓë·½³Ì ÏÂÔØ±¾ÎÄ

²Î¿¼´ð°¸

1£®£¨A£©2£®£¨C£©3£®£¨D£©4£®£¨B£©5£®£¨D£©6£®£¨C£©7£®£¨D£©8£®£¨A£©9£®£¨B£©10£®£¨A£©

11

£®

????3??0£¬?£¬???? ?4???4?12£®??1???x1??x2£¬?1???y1??y2?

13

£®

3x?y?6?0

14£®x?2y?1?0

15

£®

?x?1?2??y?2?2?2»ò

?x?9?2??y?18?2?338

16

£®

?11?a? 10217£®2x?y?4?0

?3???4y2?1£» 18£®£¨1£©?x??2???£¨2£©??90£¬S?????23?£¬??904ʱ£¬S????

3sin?1 ?23sin??12Ô²×¶²âÊÔ013

Ò»¡¢Ñ¡ÔñÌ⣺£¨Ã¿Ð¡Ìâ3·Ö£¬¹²36·Ö£©

1£®ÏÂÃæµÄ½áÂÛÖÐÕýÈ·µÄÊÇ ¡­¡­¡­¡­¡­¡­¡­¡­( )

A.a>b,Ôòa2>b2

B. a>b¶øc¡ÊR,Ôòac2>bc2

C. a>b,Ôò1?1 D. a>|b|,Ôòa2>b2

ab2£®µãP(x,y)·ÖP2P1µÄ±ÈΪ¦Ë,ÆäÖÐP1(x1,y1), P2(x2,y2).ÄÇôµãP×ø±êÊÇ ¡­¡­¡­£¨ £© A. (

x1??x2y1??y21??,1??) B.

(x2??x1y2??y11??,1??) C. (

x1??x2y1??y21??,1??) D.

(

x2??x1y21??,??y11??) 3£®Èç¹ûa>b>0,ÔòÏÂÁв»µÈʽ³ÉÁ¢µÄ

ÊÇ ¡­¡­¡­¡­¡­¡­¡­¡­¡­ ( ) A.2aba?b

B.2aba?b

C.

ab<

a?b<

2ab

2a?bD.ab<2ab

a?b24£®Ö±ÏßL£ºax+4my+3a=0 (m¡Ù0)¹ýµã(1 , -1)£¬ÄÇôLµÄбÂÊΪ¡­¡­£¨ £©

A£®

14 B£®-4 C£® -14

D£®4

5£®ÒÑÖªÖ±ÏßL¹ýµã(-2, -1), ÇÒÔÚÁ½×ø±êÖáÉϵĽؾàÏàµÈ£¬ÔòÖ±ÏßLµÄ·½³ÌΪ£º £¨ £© A£®x+y+3=0 B£®x-2y=0

C£®x-y+1=0 D£®x+y+3=0 »òx-2y=0

6£®ÒÑÖª²»µÈʽ£ºx2

-4x+3<0¡­¡­¢Ù; x2-6x+8<0¡­¡­¢Ú; x2

+ax+b<0¡­¡­¢Û, ҪʹͬʱÂú×ã¢Ù¢Ú

µÄxµÄ¼¯ºÏÇ¡ºÃÊǢ۵Ľ⼯£¬ÔòÓС­¡­¡­¡­¡­ £¨ £©

A£®a=?5, b=6 B£®a=?5, b=?6; C£® a=5, b=?6 D£®ÆäËû´ð°¸

7£®Ö±Ïßy??xt?5g?2µÄÇãб½Ç

ÊÇ ¡­¡­¡­¡­¡­ £¨ £© A£®

?5 B£®£­?5 C£®45? D£®65? 8. ¶ÔÈÎÒâʵÊým,Ö±Ïß(m-1)x+2my+6=0±Ø¾­¹ý

µÄ¶¨µãÊÇ ¡­¡­¡­¡­£¨ £©

A.(1,0) B£®(0,-3) C.(6,-3) D. (

631?m,?m) 9£®ÒÑÖªÖ±ÏßL1ºÍL2µÄбÂÊÊÇ·½³Ì

6x2?x?1?0µÄÁ½¸ù£¬ÔòL1ÓëL2 Ëù³ÉµÄ

½ÇÊÇ £¨ £©

A£®450 B£®300 C£®150 D£®600

10£®ÏÂÁк¯ÊýÖÐ×îСֵÊÇ2µÄº¯ÊýÊÇ ¡­¡­¡­¡­¡­¡­¡­¡­¡­( )

A. y=tgx+ctgx B. y=x2?4

x2?3C. y=x?4?x D. y=x?2x?1

11£®ÓÐÏÂÁÐÃüÌ⣺£¨1£©ÈôÁ½ÌõÖ±Ï߯½ÐУ¬ÔòÆäбÂʱØÏàµÈ£»£¨2£©ÈôÁ½ÌõÖ±Ïß»¥Ïà´¹Ö±£¬ÔòÆäбÂʵij˻ý±ØÎª£­1£»£¨3£©¹ýµã£¨£­1£¬1£©£¬ÇÒбÂÊΪ2µÄÖ±Ïß·½³ÌÊÇ

y?1x?1?2£»£¨4£©Í¬´¹Ö±ÓÚxÖáµÄÁ½ÌõÖ±ÏßÒ»¶¨¶¼ºÍyÖáÆ½ÐС£ÆäÖÐÕæÃüÌâµÄ¸öÊýÊÇ ¡­¡­¡­¡­¡­¡­¡­¡­ £¨ £©

A£®0 B£®1 C£®2 D£®4

12£®Èç¹ûa<|x+1|+|x+9|¶ÔÈÎÒâʵÊýx×ܳÉÁ¢,ÔòaµÄȡֵ·¶Î§ÊÇ¡­¡­¡­¡­¡­¡­¡­ ( ) A. {a|a>8} B. {a|a<8} C. {a|a¡Ý8} D. {a|a¡Ü8} ¶þ¡¢Ìî¿ÕÌ⣺£¨Ã¿Ð¡Ìâ4·Ö£¬¹²20·Ö£© 13£®²»µÈʽx?2¡Ý1µÄ½â¼¯ÊÇ ¡ø ¡£

2x14£®Ïß¶ÎABµÄÁ½¶ËµãÊÇA(2,-3)ºÍB(-2,-5),

¹ýµãP(1,1)µÄÖ±ÏßLÓëÏß¶ÎABÓй«¹²µã,ÔòÖ±ÏßLµÄбÂÊkµÄȡֵ·¶Î§ÊÇ ¡ø ¡£

15£®¹ØÓÚxµÄ²»µÈʽ

(k2?2k?3)x?(k2?2k?3)1?x22µÄ½â¼¯ÊÇ

{x|x?12}ÔòʵÊýkµÄȡֵ·¶Î§ÊÇ¡ø¡£

16£®ÓëÖ±Ïß3x+4y-7=0´¹Ö±£¬ÇÒÓëÔ­µãµÄ¾àÀë

Ϊ6µÄÖ±Ïß·½³ÌΪ ¡ø ¡£ 17£®Ä³Ð£Òª½¨ÔìÒ»¸ö³¤·½ÌåÎÞ¸ÇÖüË®³Ø£¬³ØÉî2

Ã×£¬ÈÝ»ýΪ50Á¢·½Ã×£¬Èç¹û³Øµ×ÿ1ƽ·½Ã×Ôì¼Û100Ôª£¬³Ø±Úÿ1ƽ·½Ã×Ôì¼Û80Ôª£¬Ôò¸ÃË®³Ø×îµÍ×ÜÔì¼ÛΪ ¡ø Ôª¡£ ¶þ¡¢½â´ðÌ⣺£¨¹²44·Ö£©

18£®ÒÑÖªPÊÇÖ±ÏßLÉÏÒ»µã£¬½«Ö±ÏßLÈÆPµã

ÄæÊ±Õë·½ÏòÐýת?£¨0????2£©ËùµÃÖ±Ïß

ΪL1£º3x?y?22?0¡£Èô¼ÌÐøÈÆPµãÄæÊ±Õë·½ÏòÐýת

?2??½Ç£¬µÃÖ±ÏßL2£º2x?3y?11?0¡£ÇóÖ±ÏßLµÄ·½³Ì¡££¨10·Ö£©

a2?b219£®ÒÑÖªÕýÊýa¡¢b¡¢c,ÇóÖ¤£º

?c2a?b?c?abc£¨10·Ö£©

20£®²»µÈʽlgx?2 > lgxµÄ½â¼¯ÎªA,¹ØÓÚx

µÄ²»µÈʽ

ax?1x?1?0µÄ½âΪB,ÇÒÓÐA¡ÉB=B,ÇóʵÊýaµÄȡֵ·¶Î§£¨12·Ö£© 21£®ÒÑÖªÖ±Ïßl31£ºy?x£¬l2£ºy??3x£¬ÔÚÁ½Ö±ÏßÉÏ·½ÓÐÒ»µãP£¨Èçͼ£©£¬ÒÑÖªPµ½l1£¬l2µÄ¾àÀë·Ö±ðΪ22Óë23£¬ÔÙ¹ýP·Ö±ð×÷l1¡¢l2µÄ´¹Ïߣ¬´¹×ãΪA¡¢B£¬Ç󣺣¨1£©PµãµÄ×ø±ê¡£ £¨2£©|AB|µÄÖµ¡££¨12·Ö£© y L2 L1 B P A 0 x

¹ðÁÖÒ»Öи߶þÊýѧ´ðÌâ¾í

Ò»¡¢Ñ¡ÔñÌ⣨¹²36·Ö£©

ÌâºÅ ´ð°¸ 1 2 3 4 5 6 7 8 9 10 11 12 µÃ·Ö ¶þ¡¢Ìî¿ÕÌ⣨¹²20·Ö£©

13£® 14£® 15£® 16£® 17£® Èý¡¢½â´ðÌ⣨¹²44·Ö£©

18£®£¨10·Ö£©

19£®£¨10·Ö£© 20£®£¨12·Ö£©