高一数学公式有哪些？？？
\u9ad8\u4e00\u7684\u6570\u5b66\u516c\u5f0f\u90fd\u6709\u54ea\u4e9b\u554a\uff1f\uff1f\uff1f\uff1f\uff1f\u6211\u6709\u5168\u90e8
\u6570\u5b66\u9ad8\u8003\u57fa\u7840\u77e5\u8bc6\u3001\u5e38\u89c1\u7ed3\u8bba\u8be6\u89e3
\u4e00\u3001\u96c6\u5408\u4e0e\u7b80\u6613\u903b\u8f91\uff1a
\u4e00\u3001\u7406\u89e3\u96c6\u5408\u4e2d\u7684\u6709\u5173\u6982\u5ff5
\uff081\uff09\u96c6\u5408\u4e2d\u5143\u7d20\u7684\u7279\u5f81\uff1a \u786e\u5b9a\u6027 \uff0c \u4e92\u5f02\u6027 \uff0c \u65e0\u5e8f\u6027 \u3002
\u96c6\u5408\u5143\u7d20\u7684\u4e92\u5f02\u6027\uff1a\u5982\uff1a \uff0c \uff0c\u6c42 \uff1b
\uff082\uff09\u96c6\u5408\u4e0e\u5143\u7d20\u7684\u5173\u7cfb\u7528\u7b26\u53f7 \uff0c \u8868\u793a\u3002
\uff083\uff09\u5e38\u7528\u6570\u96c6\u7684\u7b26\u53f7\u8868\u793a\uff1a\u81ea\u7136\u6570\u96c6 \uff1b\u6b63\u6574\u6570\u96c6 \u3001 \uff1b\u6574\u6570\u96c6 \uff1b\u6709\u7406\u6570\u96c6 \u3001\u5b9e\u6570\u96c6 \u3002
\uff084\uff09\u96c6\u5408\u7684\u8868\u793a\u6cd5\uff1a \u5217\u4e3e\u6cd5 \uff0c \u63cf\u8ff0\u6cd5 \uff0c \u97e6\u6069\u56fe \u3002
\u6ce8\u610f\uff1a\u533a\u5206\u96c6\u5408\u4e2d\u5143\u7d20\u7684\u5f62\u5f0f\uff1a\u5982\uff1a \uff1b \uff1b \uff1b \uff1b \uff1b
\uff1b
\uff085\uff09\u7a7a\u96c6\u662f\u6307\u4e0d\u542b\u4efb\u4f55\u5143\u7d20\u7684\u96c6\u5408\u3002\uff08 \u3001 \u548c \u7684\u533a\u522b\uff1b0\u4e0e\u4e09\u8005\u95f4\u7684\u5173\u7cfb\uff09
\u7a7a\u96c6\u662f\u4efb\u4f55\u96c6\u5408\u7684\u5b50\u96c6\uff0c\u662f\u4efb\u4f55\u975e\u7a7a\u96c6\u5408\u7684\u771f\u5b50\u96c6\u3002
\u6ce8\u610f\uff1a\u6761\u4ef6\u4e3a \uff0c\u5728\u8ba8\u8bba\u7684\u65f6\u5019\u4e0d\u8981\u9057\u5fd8\u4e86 \u7684\u60c5\u51b5\u3002
\u5982\uff1a \uff0c\u5982\u679c \uff0c\u6c42 \u7684\u53d6\u503c\u3002
\u4e8c\u3001\u96c6\u5408\u95f4\u7684\u5173\u7cfb\u53ca\u5176\u8fd0\u7b97
\uff081\uff09\u7b26\u53f7\u201c \u201d\u662f\u8868\u793a\u5143\u7d20\u4e0e\u96c6\u5408\u4e4b\u95f4\u5173\u7cfb\u7684\uff0c\u7acb\u4f53\u51e0\u4f55\u4e2d\u7684\u4f53\u73b0 \u70b9\u4e0e\u76f4\u7ebf\uff08\u9762\uff09\u7684\u5173\u7cfb \uff1b
\u7b26\u53f7\u201c \u201d\u662f\u8868\u793a\u96c6\u5408\u4e0e\u96c6\u5408\u4e4b\u95f4\u5173\u7cfb\u7684\uff0c\u7acb\u4f53\u51e0\u4f55\u4e2d\u7684\u4f53\u73b0 \u9762\u4e0e\u76f4\u7ebf(\u9762)\u7684\u5173\u7cfb \u3002
\uff082\uff09 \uff1b \uff1b
\uff083\uff09\u5bf9\u4e8e\u4efb\u610f\u96c6\u5408 \uff0c\u5219\uff1a
\u2460 \uff1b \uff1b \uff1b
\u2461 \uff1b \uff1b
\uff1b \uff1b
\u2462 \uff1b \uff1b
\uff084\uff09\u2460\u82e5 \u4e3a\u5076\u6570\uff0c\u5219 \uff1b\u82e5 \u4e3a\u5947\u6570\uff0c\u5219 \uff1b
\u2461\u82e5 \u88ab3\u9664\u4f590\uff0c\u5219 \uff1b\u82e5 \u88ab3\u9664\u4f591\uff0c\u5219 \uff1b\u82e5 \u88ab3\u9664\u4f592\uff0c\u5219 \uff1b
\u4e09\u3001\u96c6\u5408\u4e2d\u5143\u7d20\u7684\u4e2a\u6570\u7684\u8ba1\u7b97\uff1a
\uff081\uff09\u82e5\u96c6\u5408 \u4e2d\u6709 \u4e2a\u5143\u7d20\uff0c\u5219\u96c6\u5408 \u7684\u6240\u6709\u4e0d\u540c\u7684\u5b50\u96c6\u4e2a\u6570\u4e3a_________\uff0c\u6240\u6709\u771f\u5b50\u96c6\u7684\u4e2a\u6570\u662f__________\uff0c\u6240\u6709\u975e\u7a7a\u771f\u5b50\u96c6\u7684\u4e2a\u6570\u662f \u3002
\uff082\uff09 \u4e2d\u5143\u7d20\u7684\u4e2a\u6570\u7684\u8ba1\u7b97\u516c\u5f0f\u4e3a\uff1a \uff1b
\uff083\uff09\u97e6\u6069\u56fe\u7684\u8fd0\u7528\uff1a
\u56db\u3001 \u6ee1\u8db3\u6761\u4ef6 \uff0c \u6ee1\u8db3\u6761\u4ef6 \uff0c
\u82e5 \uff1b\u5219 \u662f \u7684\u5145\u5206\u975e\u5fc5\u8981\u6761\u4ef6 \uff1b
\u82e5 \uff1b\u5219 \u662f \u7684\u5fc5\u8981\u975e\u5145\u5206\u6761\u4ef6 \uff1b
\u82e5 \uff1b\u5219 \u662f \u7684\u5145\u8981\u6761\u4ef6 \uff1b
\u82e5 \uff1b\u5219 \u662f \u7684\u65e2\u975e\u5145\u5206\u53c8\u975e\u5fc5\u8981\u6761\u4ef6 \uff1b
\u4e94\u3001\u539f\u547d\u9898\u4e0e\u9006\u5426\u547d\u9898\uff0c\u5426\u547d\u9898\u4e0e\u9006\u547d\u9898\u5177\u6709\u76f8\u540c\u7684 \uff1b
\u6ce8\u610f\uff1a\u201c\u82e5 \uff0c\u5219 \u201d\u5728\u89e3\u9898\u4e2d\u7684\u8fd0\u7528\uff0c
\u5982\uff1a\u201c \u201d\u662f\u201c \u201d\u7684 \u6761\u4ef6\u3002
\u516d\u3001\u53cd\u8bc1\u6cd5\uff1a\u5f53\u8bc1\u660e\u201c\u82e5 \uff0c\u5219 \u201d\u611f\u5230\u56f0\u96be\u65f6\uff0c\u6539\u8bc1\u5b83\u7684\u7b49\u4ef7\u547d\u9898\u201c\u82e5 \u5219 \u201d\u6210\u7acb\uff0c
\u6b65\u9aa4\uff1a1\u3001\u5047\u8bbe\u7ed3\u8bba\u53cd\u9762\u6210\u7acb\uff1b2\u3001\u4ece\u8fd9\u4e2a\u5047\u8bbe\u51fa\u53d1\uff0c\u63a8\u7406\u8bba\u8bc1\uff0c\u5f97\u51fa\u77db\u76fe\uff1b3\u3001\u7531\u77db\u76fe\u5224\u65ad\u5047\u8bbe\u4e0d\u6210\u7acb\uff0c\u4ece\u800c\u80af\u5b9a\u7ed3\u8bba\u6b63\u786e\u3002
\u77db\u76fe\u7684\u6765\u6e90\uff1a1\u3001\u4e0e\u539f\u547d\u9898\u7684\u6761\u4ef6\u77db\u76fe\uff1b2\u3001\u5bfc\u51fa\u4e0e\u5047\u8bbe\u76f8\u77db\u76fe\u7684\u547d\u9898\uff1b3\u3001\u5bfc\u51fa\u4e00\u4e2a\u6052\u5047\u547d\u9898\u3002
\u9002\u7528\u4e0e\u5f85\u8bc1\u547d\u9898\u7684\u7ed3\u8bba\u6d89\u53ca\u201c\u4e0d\u53ef\u80fd\u201d\u3001\u201c\u4e0d\u662f\u201d\u3001\u201c\u81f3\u5c11\u201d\u3001\u201c\u81f3\u591a\u201d\u3001\u201c\u552f\u4e00\u201d\u7b49\u5b57\u773c\u65f6\u3002
\u6b63\u9762\u8bcd\u8bed \u7b49\u4e8e \u5927\u4e8e \u5c0f\u4e8e \u662f \u90fd\u662f \u81f3\u591a\u6709\u4e00\u4e2a
\u5426\u5b9a
\u6b63\u9762\u8bcd\u8bed \u81f3\u5c11\u6709\u4e00\u4e2a \u4efb\u610f\u7684 \u6240\u6709\u7684 \u81f3\u591a\u6709n\u4e2a \u4efb\u610f\u4e24\u4e2a
\u5426\u5b9a
\u4e8c\u3001\u51fd\u6570
\u4e00\u3001\u6620\u5c04\u4e0e\u51fd\u6570\uff1a
\uff081\uff09\u6620\u5c04\u7684\u6982\u5ff5\uff1a \uff082\uff09\u4e00\u4e00\u6620\u5c04\uff1a\uff083\uff09\u51fd\u6570\u7684\u6982\u5ff5\uff1a
\u5982\uff1a\u82e5 \uff0c \uff1b\u95ee\uff1a \u5230 \u7684\u6620\u5c04\u6709 \u4e2a\uff0c \u5230 \u7684\u6620\u5c04\u6709 \u4e2a\uff1b \u5230 \u7684\u51fd\u6570\u6709 \u4e2a\uff0c\u82e5 \uff0c\u5219 \u5230 \u7684\u4e00\u4e00\u6620\u5c04\u6709 \u4e2a\u3002
\u51fd\u6570 \u7684\u56fe\u8c61\u4e0e\u76f4\u7ebf \u4ea4\u70b9\u7684\u4e2a\u6570\u4e3a \u4e2a\u3002
\u4e8c\u3001\u51fd\u6570\u7684\u4e09\u8981\u7d20\uff1a \uff0c \uff0c \u3002
\u76f8\u540c\u51fd\u6570\u7684\u5224\u65ad\u65b9\u6cd5\uff1a\u2460 \uff1b\u2461 (\u4e24\u70b9\u5fc5\u987b\u540c\u65f6\u5177\u5907)
\uff081\uff09\u51fd\u6570\u89e3\u6790\u5f0f\u7684\u6c42\u6cd5\uff1a
\u2460\u5b9a\u4e49\u6cd5\uff08\u62fc\u51d1\uff09\uff1a\u2461\u6362\u5143\u6cd5\uff1a\u2462\u5f85\u5b9a\u7cfb\u6570\u6cd5\uff1a\u2463\u8d4b\u503c\u6cd5\uff1a
\uff082\uff09\u51fd\u6570\u5b9a\u4e49\u57df\u7684\u6c42\u6cd5\uff1a
\u2460 \uff0c\u5219 \uff1b \u2461 \u5219 \uff1b
\u2462 \uff0c\u5219 \uff1b \u2463\u5982\uff1a \uff0c\u5219 \uff1b
\u2464\u542b\u53c2\u95ee\u9898\u7684\u5b9a\u4e49\u57df\u8981\u5206\u7c7b\u8ba8\u8bba\uff1b
\u5982\uff1a\u5df2\u77e5\u51fd\u6570 \u7684\u5b9a\u4e49\u57df\u662f \uff0c\u6c42 \u7684\u5b9a\u4e49\u57df\u3002
\u2465\u5bf9\u4e8e\u5b9e\u9645\u95ee\u9898\uff0c\u5728\u6c42\u51fa\u51fd\u6570\u89e3\u6790\u5f0f\u540e\uff1b\u5fc5\u987b\u6c42\u51fa\u5176\u5b9a\u4e49\u57df\uff0c\u6b64\u65f6\u7684\u5b9a\u4e49\u57df\u8981\u6839\u636e\u5b9e\u9645\u610f\u4e49\u6765\u786e\u5b9a\u3002\u5982\uff1a\u5df2\u77e5\u6247\u5f62\u7684\u5468\u957f\u4e3a20\uff0c\u534a\u5f84\u4e3a \uff0c\u6247\u5f62\u9762\u79ef\u4e3a \uff0c\u5219 \uff1b\u5b9a\u4e49\u57df\u4e3a \u3002
\uff083\uff09\u51fd\u6570\u503c\u57df\u7684\u6c42\u6cd5\uff1a
\u2460\u914d\u65b9\u6cd5\uff1a\u8f6c\u5316\u4e3a\u4e8c\u6b21\u51fd\u6570\uff0c\u5229\u7528\u4e8c\u6b21\u51fd\u6570\u7684\u7279\u5f81\u6765\u6c42\u503c\uff1b\u5e38\u8f6c\u5316\u4e3a\u578b\u5982\uff1a \u7684\u5f62\u5f0f\uff1b
\u2461\u9006\u6c42\u6cd5\uff08\u53cd\u6c42\u6cd5\uff09\uff1a\u901a\u8fc7\u53cd\u89e3\uff0c\u7528 \u6765\u8868\u793a \uff0c\u518d\u7531 \u7684\u53d6\u503c\u8303\u56f4\uff0c\u901a\u8fc7\u89e3\u4e0d\u7b49\u5f0f\uff0c\u5f97\u51fa \u7684\u53d6\u503c\u8303\u56f4\uff1b\u5e38\u7528\u6765\u89e3\uff0c\u578b\u5982\uff1a \uff1b
\u2463\u6362\u5143\u6cd5\uff1a\u901a\u8fc7\u53d8\u91cf\u4ee3\u6362\u8f6c\u5316\u4e3a\u80fd\u6c42\u503c\u57df\u7684\u51fd\u6570\uff0c\u5316\u5f52\u601d\u60f3\uff1b
\u2464\u4e09\u89d2\u6709\u754c\u6cd5\uff1a\u8f6c\u5316\u4e3a\u53ea\u542b\u6b63\u5f26\u3001\u4f59\u5f26\u7684\u51fd\u6570\uff0c\u8fd0\u7528\u4e09\u89d2\u51fd\u6570\u6709\u754c\u6027\u6765\u6c42\u503c\u57df\uff1b
\u2465\u57fa\u672c\u4e0d\u7b49\u5f0f\u6cd5\uff1a\u8f6c\u5316\u6210\u578b\u5982\uff1a \uff0c\u5229\u7528\u5e73\u5747\u503c\u4e0d\u7b49\u5f0f\u516c\u5f0f\u6765\u6c42\u503c\u57df\uff1b
\u2466\u5355\u8c03\u6027\u6cd5\uff1a\u51fd\u6570\u4e3a\u5355\u8c03\u51fd\u6570\uff0c\u53ef\u6839\u636e\u51fd\u6570\u7684\u5355\u8c03\u6027\u6c42\u503c\u57df\u3002
\u2467\u6570\u5f62\u7ed3\u5408\uff1a\u6839\u636e\u51fd\u6570\u7684\u51e0\u4f55\u56fe\u5f62\uff0c\u5229\u7528\u6570\u578b\u7ed3\u5408\u7684\u65b9\u6cd5\u6765\u6c42\u503c\u57df\u3002
\u6c42\u4e0b\u5217\u51fd\u6570\u7684\u503c\u57df\uff1a\u2460 \uff082\u79cd\u65b9\u6cd5\uff09\uff1b
\u2461 \uff082\u79cd\u65b9\u6cd5\uff09\uff1b\u2462 \uff082\u79cd\u65b9\u6cd5\uff09\uff1b
sin(A+B)=sinAcosB+cosAsinB
sin(A-B)=sinAcosB-sinBcosA
cos(A+B)=cosAcosB-sinAsinB
cos(A-B)=cosAcosB+sinAsinB
tan(A+B)=(tanA+tanB)/(1-tanAtanB)
tan(A-B)=(tanA-tanB)/(1+tanAtanB)
二）用以上公式可推出下列二倍角公式
tan2A=2tanA/[1-(tanA)^2]
cos2a=(cosa)^2-(sina)^2=2(cosa)^2 -1=1-2(sina)^2
（上面这个余弦的很重要）
sin2A=2sinA*cosA
三）半角的只需记住这个：
tan(A/2)=(1-cosA)/sinA=sinA/(1+cosA)
四）用二倍角中的余弦可推出降幂公式
(sinA)^2=(1-cos2A)/2
(cosA)^2=(1+cos2A)/2
五）用以上降幂公式可推出以下常用的化简公式
1-cosA=sin^(A/2)*2
1-sinA=cos^(A/2)*2万能公式 令tan(a/2)=t sina=2t/(1+t^2) cosa=(1-t^2)/(1+t^2) tana=2t/(1-t^2) 二次三项式因式分解公式：x^2+(p+q)x+pq=(x+p)(x+q) 立方差 a³-b³=(a-b)(a²+ab+b²)立方和 a³+b³=(a+b)(a²-ab+b²) 完全平方和公式 (a+b)^2=a^2+2ab+b^2完全平方差公式 (a-b)^2=a^2-2ab+b^2 完全立方和公式 (a+b)3=(a+b)(a+b)(a+b)=(a2+2ab+b2)(a+b)=a3+3a2b+3ab2+b3 完全立方差公式 (a-b)3=(a-b)(a-b)(a-b)=(a2-2ab+b2)(a-b)=a3-3a2b+3ab2-b3
绛旓細3. 鎸囨暟涓庡鏁板叕寮忥細濡傛寚鏁拌繍绠楁硶鍒欍佸鏁扮殑瀹氫箟涓庢ц川绛銆4. 鍑犱綍鍏紡锛氬骞抽潰鍑犱綍涓殑闈㈢Н銆佷綋绉叕寮忥紝绔嬩綋鍑犱綍涓殑绌洪棿璺濈銆佽搴﹀叕寮忕瓑銆備互涓嬫槸涓浜涢珮1鏁板涓父鐢ㄧ殑鍏紡鍙婂叾璇︾粏 浠ｆ暟鍏紡 1. 骞虫柟宸叕寮锛氬浜庝换鎰忓疄鏁癮鍜宐锛屾湁(a+b)(a-b) = a^2 - b^2銆傝繖涓叕寮忓湪鍥犲紡鍒嗚В鍜屼唬鏁拌繍绠椾腑闈...
绛旓細9.涓夎鍑芥暟鐨勫拰宸寲绉叕寮忥細sin(A+B)=sinAcosB+cosAsinB锛宻in(A-B)=sinAcosB-cosAsinB銆10.涓夎鍑芥暟鐨勭Н鍖栧拰宸叕寮忥細sinAcosB=1/2*[sin(A+B)+sin(A-B)]锛宑osAsinB=1/2*[cos(A+B)-cos(A-B)]銆
绛旓細tan锛埼憋紞尾锛夛紳锛坱an伪锛峵an尾锛夛紡锛1锛媡an伪路tan尾锛4銆佷簩鍊嶈鐨勬寮︺佷綑寮﹀拰姝ｅ垏鍏紡锛堝崌骞傜缉瑙掑叕寮忥級sin2伪锛2sin伪cos伪 cos2伪锛漜os^2(伪锛夛紞sin^2(伪锛夛紳2cos^2(伪锛夛紞1锛1锛2sin^2(伪锛塼an2伪锛2tan伪锛 5銆佸崐瑙掑叕寮 sin^2(伪锛2)锛濓紙1锛峜os伪锛夛紡2 cos^2(伪锛2)...
绛旓細1銆涓よ鍜屽叕寮锛sin(A+B)=sinAcosB+cosAsinB sin(A-B)=sinAcosB-sinBcosA cos(A+B)=cosAcosB-sinAsinB cos(A-B)=cosAcosB+sinAsinB tan(A+B)=(tanA+tanB)/(1-tanAtanB) tan(A-B)=(tanA-tanB)/(1+tanAtanB)ctg(A+B)=(ctgActgB-1)/(ctgB+ctgA) ctg(A-B)=(ctgActgB+1)/...
绛旓細楂樹竴鏁板鍏紡鐭ヨ瘑鎬荤粨绡囦竴 涓夎鍑芥暟鍏紡 1銆涓よ鍜屽叕寮 sin(A+B)=sinAcosB+cosAsinB sin(A-B)=sinAcosB-sinBcosA cos(A+B)=cosAcosB-sinAsinB cos(A-B)=cosAcosB+sinAsinB tan(A+B)=(tanA+tanB)/(1-tanAtanB) tan(A-B)=(tanA-tanB)/(1+tanAtanB)ctg(A+B)=(ctgActgB-1)/(ctgB...
绛旓細鏁板蹇呬慨涓鏁板鍏紡濡備笅锛1銆2sinAcosB=sin(A+B)+sin(A-B)銆2銆乼an(A+B)=(tanA+tanB)/(1-tanAtanB)銆3銆乧os2a=cos2a-sin2a=2cos2a-1=1-2sin2a銆4銆乼an(A-B)=(tanA-tanB)/(1+tanAtanB)銆5銆-ctgA+ctgBsin(A+B)/sinAsinB銆傛暟瀛﹀繀淇竴鍏紡褰掔撼锛氫竴銆佹寚鏁颁笌鎸囨暟骞傜殑杩愮畻 1銆...
绛旓細鍏紡鏄珮涓瀛︾敓瀛︿範鏁板鐨勫熀鏈唴瀹癸紝閭ｄ箞闇瑕佽蹇嗙殑鍏紡鍏蜂綋鏈夊摢浜鍛?涓嬮潰鏄垜缁欏ぇ瀹跺甫鏉ョ殑楂樹竴鏁板鍏紡锛屽笇鏈涘浣犳湁甯姪銆傞珮涓鏁板鍏紡 涔樻硶涓庡洜寮忓垎 a2-b2=(a+b)(a-b) a3+b3=(a+b)(a2-ab+b2) a3-b3=(a-b(a2+ab+b2)-楂樹腑鏁板鍏紡澶у叏 涓夎涓嶇瓑寮 |a+b|≤|a|+|b| |a-b|&...
绛旓細浠ヤ笅鏄竴浜涘父鐢ㄧ殑楂樹腑鏁板鍏紡锛-涓夎鍑芥暟 -sin(x)=y -cos(x)=y -tan(x)=y/x -asin(x)=y -acos(x)=y -atan(x)=y/x -瀵规暟鍑芥暟 -loga(b)=c锛坅>0,b>0,c>0锛-loga(b)=c=1logb(a)-鎸囨暟鍑芥暟 -e^x=y -骞傚嚱鏁 -x^n=y -涓夎鎭掔瓑寮 -sin^2(x)+cos^2(x)=1 -姝ｅ鸡...
绛旓細1.鐗涢】-鑾卞竷灏艰尐鍏紡,鍙堢О涓哄井绉垎鍩烘湰鍏紡 2.鏍兼灄鍏紡,鎶婂皝闂殑鏇茬嚎绉垎鍖栦负鍖哄煙鍐呯殑浜岄噸绉垎,瀹冩槸骞抽潰鍚戦噺鍦烘暎搴︾殑浜岄噸绉垎 3.楂樻柉鍏紡,鎶婃洸闈㈢Н鍒嗗寲涓哄尯鍩熷唴鐨勪笁閲嶇Н鍒,瀹冩槸骞抽潰鍚戦噺鍦烘暎搴︾殑涓夐噸绉垎 4.鏂墭鍏嬫柉鍏紡,涓庢棆搴︽湁鍏 (2)寰Н鍒嗗父鐢ㄥ叕寮忥細Dx sin x=cos x cos x = -sin x tan ...
绛旓細涓銆侀珮涓繀鑳88涓鏁板鍏紡鈥斺斿渾鐨勫叕寮 1銆佸渾浣撶Н=4/3(pi)(r^3)2銆侀潰绉=(pi)(r^2)3銆佸懆闀=2(pi)r 4銆佸渾鐨勬爣鍑嗘柟绋(x-a)2+(y-b)2=r2銆(a,b)鏄渾蹇冨潗鏍囥5銆佸渾鐨勪竴鑸柟绋媥2+y2+dx+ey+f=0銆恉2+e2-4f>0銆戜簩銆侀珮涓繀鑳88涓暟瀛﹀叕寮忊斺旀き鍦嗗叕寮 1銆佹き鍦嗗懆闀垮叕寮忥細l=2蟺...
