求下列各数的平方根．（1）64 （2）1649（3）1104（4）2.25． 求下列各数的平方根及算数平方根 （1）64 （2）0.25 ...
\u6c42\u4e0b\u5217\u4e2a\u6570\u7684\u5e73\u65b9\u6839\uff081\uff0981\uff082\uff0925/64\uff083\uff090.04\uff084\uff0910²\uff081\uff0981\u7684\u5e73\u65b9\u6839\u662f\u00b19
\uff082\uff0925/64\u7684\u5e73\u65b9\u6839\u662f\u00b15/8
\uff083\uff090.04\u7684\u5e73\u65b9\u6839\u662f\u00b10.2
\uff084\uff0910²\u7684\u5e73\u65b9\u6839\u662f\u00b110
\u5982\u679c\u4e0d\u61c2\uff0c\u8bf7\u8ffd\u95ee\uff0c\u795d\u5b66\u4e60\u6109\u5feb\uff01
64\u7684\u5e73\u65b9\u6839\u662f\u6b63\u8d1f8\uff0c\u7b97\u6570\u5e73\u65b9\u6839\u662f8
0.25\u7684\u5e73\u65b9\u6839\u662f\u6b63\u8d1f0.5\u7b97\u6570\u5e73\u65b9\u6839\u662f0.5
9/4\u7684\u5e73\u65b9\u6839\u662f\u6b63\u8d1f3/2\u7b97\u6570\u5e73\u65b9\u6839\u662f3/2
| 16 |
| 49 |
| 4 |
| 7 |
| 1 |
| 104 |
| 1 |
| 102 |
2.25的平方根是：±1.5．
绛旓細64锛毬8 0.25锛毬5 36/361锛毬6/19
绛旓細64鐨勭畻鏁板钩鏂规牴=8 64鐨勫钩鏂规牴=8鎴-8 0.25鐨勭畻鏁板钩鏂规牴=0.5 0.25鐨勫钩鏂规牴=0.5鎴栬-0.5 寰堥珮鍏翠负浣犺В绛旓紝绁濅綘瀛︿範杩涙锛佷竴鍒绘案杩523 涓轰綘瑙ｇ瓟~~濡傛灉浣犺鍙垜鐨勫洖绛旓紝璇风偣鍑讳笅闈㈢殑銆愰変负婊℃剰鍥炵瓟銆戞寜閽紝璋㈣阿~~濡傛灉杩樻湁鍏跺畠闂锛岃鍙﹀鍚戞垜姹傚姪锛岀瓟棰樹笉鏄擄紝鏁鐞嗚В~~
绛旓細64=8^2 鎵浠ョ畻鏈骞虫柟鏍鏄8 2鍙4鍒嗕箣1=9/4=(3/2)^2 鎵浠ョ畻鏈钩鏂规牴鏄3/2 锛-2锛²=4=2^2 鎵浠ョ畻鏈钩鏂规牴鏄2
绛旓細鏍瑰彿64涓嶈兘绛変簬璐8锛屽彧绛変簬8锛屾墍浠64鐨勫钩鏂规牴=8 姝ｈ礋鏍瑰彿64=姝ｈ礋8鏄纭殑锛屼絾鏄鐩姹傦紝鏄浣姹64鐨勫钩鏂规牴锛屼笉鏄眰鈥濇璐熸牴鍙64鈥
绛旓細64鍒嗕箣25 鐨勫钩鏂规牴涓烘璐5/8 锛岀畻鏈钩鏂规牴涓5/8 10鐨勮礋6娆℃柟鐨勫钩鏂规牴涓烘璐10鐨勮礋3娆℃柟锛岀畻鏈钩鏂规牴涓10鐨勮礋3娆℃柟 2鍙49鍒嗕箣46 鐨勫钩鏂规牴涓烘璐12/7 锛岀畻鏈钩鏂规牴涓12/7 鏍瑰彿81 鐨勫钩鏂规牴涓烘璐9 锛岀畻鏈钩鏂规牴涓9 姹傞噰绾
绛旓細1. 姹備笅鍒楀悇鏁扮殑绠楁湳骞虫柟鏍瑰強骞虫柟鏍.(1)2025; (2)289; (3)144/169; (4)5鐨6娆℃柟;(5)(-4/13)鐨2娆℃柟; (6)10鐨4娆℃柟.杩欎釜澶夯鐑 2.姹備笅鍒楀悇鏁扮殑绔嬫柟鏍.(1)64/125; (2)-0.008; (3)512; (4)3鐨6娆℃柟;4/5 -0.2 8 9 3.姹備笅鍒楀悇寮忕殑鍊.:(1)-鏍瑰彿49/169; ...
绛旓細1.姹備笅鍒楀悇鏁扮殑绠楁暟骞虫柟鏍: (1)81; (2)25/64;(3)0.04;(4)10². 3.姹備笅鍒楀悇鏁扮殑骞虫柟鏍: (1)49;(2)4/25;(3)1/(10鈭6);(4)0.0016; 6.浼拌涓庢牴鍙40鏈鎺ヨ繎鐨勪袱涓暣鏁版槸澶氬皯? 8.姹備笅鍒楀悇寮忎腑x鐨勫: (1).x²=25;(2).x²-81=0;(3).25x²=36銆 9.鑷敱涓嬭惤鐗╀綋鐨勯珮搴(鍗曚綅...
绛旓細(1) (2) 锛3锛4x²=64 娌＄湅鎳傞銆傘 4锛坸+1锛²=81 瑙ｏ細 x²=16 鏄1/2X²-7=0涔堬紵 瑙
绛旓細杩欎釜鎬庝箞鍐,棰樼洰鏄姹備笅鍒楀悇鏁扮殑绠楁暟骞虫柟寰堝拰骞虫柟鏍 鎴戞潵绛 1涓洖绛 #鐑# 浣犲彂鏈嬪弸鍦堜細浣跨敤閮ㄥ垎浜哄彲瑙佸姛鑳藉悧? 鐧惧害缃戝弸1a15836 2014-02-16 路 TA鑾峰緱瓒呰繃1.7涓囦釜璧 鐭ラ亾澶ф湁鍙负绛斾富 鍥炵瓟閲:3.1涓 閲囩撼鐜:80% 甯姪鐨勪汉:5414涓 鎴戜篃鍘荤瓟棰樿闂釜浜洪〉 鍏虫敞 灞曞紑鍏ㄩ儴 杩介棶 璋簡 ...
绛旓細锛3锛144/169 绠楁暟骞虫柟鏍12/13骞虫柟鏍孤12/13 锛4锛5鐨6娆℃柟 绠楁暟骞虫柟鏍5鐨3娆℃柟骞虫柟鏍孤5鐨3娆℃柟 锛5锛夛紙-4/13锛夊钩鏂 绠楁暟骞虫柟鏍4/13骞虫柟鏍孤4/13 锛6锛10鈶ｆ鏂 绠楁暟骞虫柟鏍10鐨2娆℃柟骞虫柟鏍孤10鐨2娆℃柟 2.姹備笅鍒楀悇鏁扮殑绔嬫柟鏍 锛1锛64/125 绔嬫柟鏍4/5 锛2锛-0.008 绔...
