10£®°ÑÏÂÁи÷Êý·Ö±ðÌîÈëÏàÓ¦µÄ¼¯ºÏÀ
£¨-2£©2¡¢0¡¢-0.314¡¢-£¨-11£©¡¢$\frac{22}{7}$¡¢-4$\frac{1}{3}$¡¢0.$\stackrel{•}3$¡¢|-2$\frac{3}{5}$|
ÕýÓÐÀíÊý¼¯ºÏ£º{£¨-2£©2£¬-£¨-11£©£¬$\frac{22}{7}$£¬0.$\stackrel{•}3$£¬|-2$\frac{3}{5}$|  ¡­}
¸ºÓÐÀíÊý¼¯ºÏ£º{-0.314£¬-4$\frac{1}{3}$¡­}
ÕûÊý¼¯ºÏ£º{£¨-2£©2£¬0£¬-£¨-11£©¡­}
×ÔÈ»Êý¼¯ºÏ£º{-2£©2£¬-£¨-11£©¡­}
·ÖÊý¼¯ºÏ£º{-0.314£¬$\frac{22}{7}$£¬-4$\frac{1}{3}$£¬0.$\stackrel{•}3$£¬|-2$\frac{3}{5}$|¡­}£®

·ÖÎö ¸ù¾ÝʵÊýµÄ¶¨ÒåºÍ·ÖÀà¿ÉµÃ£®

½â´ð ½â£ºÕýÓÐÀíÊý¼¯ºÏ£º{£¨-2£©2£¬-£¨-11£©£¬$\frac{22}{7}$£¬0.$\stackrel{•}3$£¬|-2$\frac{3}{5}$|¡­}£¬
¹Ê´ð°¸Îª£º£¨-2£©2£¬-£¨-11£©£¬$\frac{22}{7}$£¬0.$\stackrel{•}3$£¬|-2$\frac{3}{5}$|£»

¸ºÓÐÀíÊý¼¯ºÏ£º{-0.314£¬-4$\frac{1}{3}$ ¡­}£¬
¹Ê´ð°¸Îª£º-0.314£¬-4$\frac{1}{3}$£»

ÕûÊý¼¯ºÏ£º{£¨-2£©2£¬0£¬-£¨-11£©¡­}£¬
¹Ê´ð°¸Îª£º£¨-2£©2£¬0£¬-£¨-11£©£»

×ÔÈ»Êý¼¯ºÏ£º{£¨-2£©2£¬-£¨-11£©¡­}£¬
¹Ê´ð°¸Îª£º£¨-2£©2£¬-£¨-11£©£»

·ÖÊý¼¯ºÏ£º{-0.314£¬$\frac{22}{7}$£¬-4$\frac{1}{3}$£¬0.$\stackrel{•}3$£¬|-2$\frac{3}{5}$|¡­}£¬
¹Ê´ð°¸Îª£º-0.314£¬$\frac{22}{7}$£¬-4$\frac{1}{3}$£¬0.$\stackrel{•}3$£¬|-2$\frac{3}{5}$|£®

µãÆÀ ±¾ÌâÖ÷Òª¿¼²éʵÊýµÄ¶¨ÒåºÍ·ÖÀ࣬ÕÆÎÕʵÊý¡¢ÓÐÀíÊý¡¢ÎÞÀíÊý¡¢ÕûÊý¡¢·ÖÊýµÄ¶¨ÒåÊǽâÌâµÄ¹Ø¼ü£®

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º ÌâÐÍ£º½â´ðÌâ

1£®Èçͼ£¬ÔÚRt¡÷ABCÖУ¬¡ÏC=90¡ã£¬¡ÏB=60¡ã£¬AC=8£¬ÇóABµÄ³¤£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º ÌâÐÍ£º½â´ðÌâ

1£®´Ó¼×µØµ½ÒÒµØÓÐÒ»¶Îƽ·ÓëÒ»¶ÎÉÏÆ·£¬ÈôÆï×ÔÐгµ£¬Æ½Â·Ã¿Ð¡Ê±15ǧÃ×£¬ÉÏÆÂÿСʱ10ǧÃ×£¬ÏÂÆÂÿСʱ18ǧÃ×£¬Òò´Ë´Ó¼×µØµ½ÒÒµØÐè29·ÖÖÓ£¬´ÓÒҵص½¼×µØÐè25·ÖÖÓ£®
£¨1£©Çó¼×¡¢ÒÒÁ½µØµÄÈ«³ÌÊǶàÉÙǧÃ×£»
£¨2£©Ð¡Ã÷ÒÔÉÏÊöËٶȴÓÒÒµØÈ¥¼×µØ£¬ÆïÐÐÁË8·ÖÖÓºó½Óµç»°£¬Ðè±È¼Æ»®ÌáÇ°5·ÖÖÓµ½´ï¼×µØ£¨½Óµç»°Ê±¼ä²»¼Æ£©£¬ÇóСÃ÷½Óµç»°ºóÆï³µµÄËÙ¶ÈÖÁÉÙÊÇÿСʱ¶àÉÙǧÃ×£¿

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º ÌâÐÍ£º½â´ðÌâ

18£®»­Ò»ÌõÊýÖᣬ²¢ÔÚÊýÖáÉÏ»­³ö±íʾÏÂÁи÷ÊýµÄµã£¬ÔÙ½«ËüÃÇ°´´ÓСµ½´óµÄ˳ÐòÓá°£¼¡±Á¬½ÓÆðÀ´£®
2£¬-1.5£¬0£¬0.5£¬-1£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º ÌâÐÍ£º½â´ðÌâ

5£®°ÑÏÂÁи÷ÊýÌîÈëÏàÓ¦µÄ´óÀ¨ºÅÀ-2£¬-$\frac{1}{2}$£¬5.2£¬0£¬$\frac{2}{3}$£¬1$\frac{1}{6}$£¬-$\frac{5}{3}$£¬2005£¬-0.3£¬0.121221222¡­£¬-0.32£¬-¦Ð£®
ÕûÊý¼¯ºÏ£º{-2£¬0£¬2005  ¡­}
ÕýÊý¼¯ºÏ£º{5.2£¬$\frac{2}{3}$£¬1$\frac{1}{6}$£¬2005£¬0.121221222¡­  ¡­}
ÕýÕûÊý¼¯ºÏ£º{2005  ¡­}
·Ç¸ºÓÐÀíÊý¼¯ºÏ£º{5.2£¬0£¬$\frac{2}{3}$£¬1$\frac{1}{6}$£¬2005£¬0.121221222¡­  ¡­}£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º ÌâÐÍ£º½â´ðÌâ

15£®¼ÆË㣺
£¨1£©£¨2$\frac{1}{3}$£©-£¨+10$\frac{1}{3}$£©+£¨-8$\frac{1}{5}$£©-£¨+3$\frac{2}{5}$£©£»             
£¨2£©£¨-1$\frac{3}{7}$£©-£¨-8$\frac{2}{7}$£©-£¨+3$\frac{4}{7}$£©£»
£¨3£©£¨-5$\frac{3}{4}$£©+$\frac{1}{4}$+3$\frac{1}{8}$+£¨+5$\frac{3}{4}$£©£»         
£¨4£©|-$\frac{3}{5}$-£¨+$\frac{2}{5}$£©|+|£¨-$\frac{1}{4}$£©+£¨-$\frac{1}{2}$£©|£»
£¨5£©18+£¨-12£©+£¨-21£©+£¨+12£©£»     ¡¡
£¨6£©0.35+£¨-0.6£©+0.25+£¨-5.4£©£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º ÌâÐÍ£º½â´ðÌâ

2£®Èçͼ£¬BD¡¢CEÊÇ¡÷ABCµÄÁ½Ìõ¸ß£¬AMÊÇ¡ÏBACµÄƽ·ÖÏߣ¬½»BCÓÚM£¬½»DEÓÚN£¬ÇóÖ¤£º
£¨1£©¡÷ABD¡×¡÷ACE£» 
£¨2£©$\frac{AM}{AN}$=$\frac{BC}{DE}$£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ

19£®Êý6¡¢-1¡¢15¡¢-3ÖУ¬×îСµÄÊýÊÇ£¨¡¡¡¡£©
A£®6B£®-1C£®15D£®-3

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖÐÊýѧ À´Ô´£º ÌâÐÍ£º½â´ðÌâ

20£®Èçͼ£¬a¡¢b¡¢c·Ö±ðÊÇÊýÖáÉÏA¡¢B¡¢CËù¶ÔÓ¦µÄʵÊý£®ÊÔ»¯¼ò$\sqrt{c^2}$+|a-b|+$\root{3}{£¨a+b£©^{3}}$+|b-c|£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸