数学公式
\u6c42\u6570\u5b66\u516c\u5f0f\uff01\uff01\uff01\uff01http://zhidao.baidu.com/question/253460444.html
\u3002\u3002\u3002\u3002\u3002\u3002\u3002\u3002\u3002\u3002\u3002\u3002
1\u3001 \u6bcf\u4efd\u6570\u00d7\u4efd\u6570\uff1d\u603b\u6570 \u603b\u6570\u00f7\u6bcf\u4efd\u6570\uff1d\u4efd\u6570\u603b\u6570\u00f7\u4efd\u6570\uff1d\u6bcf\u4efd\u6570
2\u3001 1\u500d\u6570\u00d7\u500d\u6570\uff1d\u51e0\u500d\u6570 \u51e0\u500d\u6570\u00f71\u500d\u6570\uff1d\u500d\u6570\u51e0\u500d\u6570\u00f7\u500d\u6570\uff1d1\u500d\u6570
3\u3001 \u901f\u5ea6\u00d7\u65f6\u95f4\uff1d\u8def\u7a0b \u8def\u7a0b\u00f7\u901f\u5ea6\uff1d\u65f6\u95f4 \u8def\u7a0b\u00f7\u65f6\u95f4\uff1d\u901f\u5ea6
4\u3001 \u5355\u4ef7\u00d7\u6570\u91cf\uff1d\u603b\u4ef7 \u603b\u4ef7\u00f7\u5355\u4ef7\uff1d\u6570\u91cf \u603b\u4ef7\u00f7\u6570\u91cf\uff1d\u5355\u4ef7
5\u3001 \u5de5\u4f5c\u6548\u7387\u00d7\u5de5\u4f5c\u65f6\u95f4\uff1d\u5de5\u4f5c\u603b\u91cf \u5de5\u4f5c\u603b\u91cf\u00f7\u5de5\u4f5c\u6548\u7387\uff1d\u5de5\u4f5c\u65f6\u95f4\u5de5\u4f5c\u603b\u91cf\u00f7\u5de5\u4f5c\u65f6\u95f4\uff1d\u5de5\u4f5c\u6548\u7387
6\u3001 \u52a0\u6570\uff0b\u52a0\u6570\uff1d\u548c \u548c\uff0d\u4e00\u4e2a\u52a0\u6570\uff1d\u53e6\u4e00\u4e2a\u52a0\u6570
7\u3001 \u88ab\u51cf\u6570\uff0d\u51cf\u6570\uff1d\u5dee \u88ab\u51cf\u6570\uff0d\u5dee\uff1d\u51cf\u6570 \u5dee\uff0b\u51cf\u6570\uff1d\u88ab\u51cf\u6570
8\u3001 \u56e0\u6570\u00d7\u56e0\u6570\uff1d\u79ef \u79ef\u00f7\u4e00\u4e2a\u56e0\u6570\uff1d\u53e6\u4e00\u4e2a\u56e0\u6570
9\u3001 \u88ab\u9664\u6570\u00f7\u9664\u6570\uff1d\u5546 \u88ab\u9664\u6570\u00f7\u5546\uff1d\u9664\u6570 \u5546\u00d7\u9664\u6570\uff1d\u88ab\u9664\u6570
\u5c0f\u5b66\u6570\u5b66\u56fe\u5f62\u8ba1\u7b97\u516c\u5f0f
1 \u3001\u6b63\u65b9\u5f62 C\u5468\u957f S\u9762\u79ef a\u8fb9\u957f \u5468\u957f\uff1d\u8fb9\u957f\u00d74 C=4a \u9762\u79ef=\u8fb9\u957f\u00d7\u8fb9\u957f S=a\u00d7a
2 \u3001\u6b63\u65b9\u4f53 V:\u4f53\u79ef a:\u68f1\u957f \u8868\u9762\u79ef=\u68f1\u957f\u00d7\u68f1\u957f\u00d76 S\u8868=a\u00d7a\u00d76 \u4f53\u79ef=\u68f1\u957f\u00d7\u68f1\u957f\u00d7\u68f1\u957f V=a\u00d7a\u00d7a
3 \u3001\u957f\u65b9\u5f62
C\u5468\u957f S\u9762\u79ef a\u8fb9\u957f
\u5468\u957f=(\u957f+\u5bbd)\u00d72
C=2(a+b)
\u9762\u79ef=\u957f\u00d7\u5bbd
S=ab
4 \u3001\u957f\u65b9\u4f53
V:\u4f53\u79ef s:\u9762\u79ef a:\u957f b: \u5bbd h:\u9ad8
(1)\u8868\u9762\u79ef(\u957f\u00d7\u5bbd+\u957f\u00d7\u9ad8+\u5bbd\u00d7\u9ad8)\u00d72
S=2(ab+ah+bh)
(2)\u4f53\u79ef=\u957f\u00d7\u5bbd\u00d7\u9ad8
V=abh
5 \u4e09\u89d2\u5f62
s\u9762\u79ef a\u5e95 h\u9ad8
\u9762\u79ef=\u5e95\u00d7\u9ad8\u00f72
s=ah\u00f72
\u4e09\u89d2\u5f62\u9ad8=\u9762\u79ef \u00d72\u00f7\u5e95
\u4e09\u89d2\u5f62\u5e95=\u9762\u79ef \u00d72\u00f7\u9ad8
6 \u5e73\u884c\u56db\u8fb9\u5f62
s\u9762\u79ef a\u5e95 h\u9ad8
\u9762\u79ef=\u5e95\u00d7\u9ad8
s=ah
7 \u68af\u5f62
s\u9762\u79ef a\u4e0a\u5e95 b\u4e0b\u5e95 h\u9ad8
\u9762\u79ef=(\u4e0a\u5e95+\u4e0b\u5e95)\u00d7\u9ad8\u00f72
s=(a+b)\u00d7 h\u00f72
8 \u5706\u5f62
S\u9762\u79ef C\u5468\u957f \u220f d=\u76f4\u5f84 r=\u534a\u5f84
(1)\u5468\u957f=\u76f4\u5f84\u00d7\u220f=2\u00d7\u220f\u00d7\u534a\u5f84
C=\u220fd=2\u220fr
(2)\u9762\u79ef=\u534a\u5f84\u00d7\u534a\u5f84\u00d7\u220f
9 \u5706\u67f1\u4f53
v:\u4f53\u79ef h:\u9ad8 s;\u5e95\u9762\u79ef r:\u5e95\u9762\u534a\u5f84 c:\u5e95\u9762\u5468\u957f
(1)\u4fa7\u9762\u79ef=\u5e95\u9762\u5468\u957f\u00d7\u9ad8
(2)\u8868\u9762\u79ef=\u4fa7\u9762\u79ef+\u5e95\u9762\u79ef\u00d72
(3)\u4f53\u79ef=\u5e95\u9762\u79ef\u00d7\u9ad8
\uff084\uff09\u4f53\u79ef\uff1d\u4fa7\u9762\u79ef\u00f72\u00d7\u534a\u5f84
10 \u5706\u9525\u4f53
v:\u4f53\u79ef h:\u9ad8 s;\u5e95\u9762\u79ef r:\u5e95\u9762\u534a\u5f84
\u4f53\u79ef=\u5e95\u9762\u79ef\u00d7\u9ad8\u00f73
\u603b\u6570\u00f7\u603b\u4efd\u6570\uff1d\u5e73\u5747\u6570
\u548c\u5dee\u95ee\u9898\u7684\u516c\u5f0f
(\u548c\uff0b\u5dee)\u00f72\uff1d\u5927\u6570
(\u548c\uff0d\u5dee)\u00f72\uff1d\u5c0f\u6570
\u548c\u500d\u95ee\u9898
\u548c\u00f7(\u500d\u6570\uff0d1)\uff1d\u5c0f\u6570
\u5c0f\u6570\u00d7\u500d\u6570\uff1d\u5927\u6570
(\u6216\u8005 \u548c\uff0d\u5c0f\u6570\uff1d\u5927\u6570)
\u5dee\u500d\u95ee\u9898
\u5dee\u00f7(\u500d\u6570\uff0d1)\uff1d\u5c0f\u6570
\u5c0f\u6570\u00d7\u500d\u6570\uff1d\u5927\u6570
(\u6216 \u5c0f\u6570\uff0b\u5dee\uff1d\u5927\u6570)
\u690d\u6811\u95ee\u9898
1 \u975e\u5c01\u95ed\u7ebf\u8def\u4e0a\u7684\u690d\u6811\u95ee\u9898\u4e3b\u8981\u53ef\u5206\u4e3a\u4ee5\u4e0b\u4e09\u79cd\u60c5\u5f62:
\u2474\u5982\u679c\u5728\u975e\u5c01\u95ed\u7ebf\u8def\u7684\u4e24\u7aef\u90fd\u8981\u690d\u6811,\u90a3\u4e48:
\u682a\u6570\uff1d\u6bb5\u6570\uff0b1\uff1d\u5168\u957f\u00f7\u682a\u8ddd\uff0d1
\u5168\u957f\uff1d\u682a\u8ddd\u00d7(\u682a\u6570\uff0d1)
\u682a\u8ddd\uff1d\u5168\u957f\u00f7(\u682a\u6570\uff0d1)
\u2475\u5982\u679c\u5728\u975e\u5c01\u95ed\u7ebf\u8def\u7684\u4e00\u7aef\u8981\u690d\u6811,\u53e6\u4e00\u7aef\u4e0d\u8981\u690d\u6811,\u90a3\u4e48:
\u682a\u6570\uff1d\u6bb5\u6570\uff1d\u5168\u957f\u00f7\u682a\u8ddd
\u5168\u957f\uff1d\u682a\u8ddd\u00d7\u682a\u6570
\u682a\u8ddd\uff1d\u5168\u957f\u00f7\u682a\u6570
\u2476\u5982\u679c\u5728\u975e\u5c01\u95ed\u7ebf\u8def\u7684\u4e24\u7aef\u90fd\u4e0d\u8981\u690d\u6811,\u90a3\u4e48:
\u682a\u6570\uff1d\u6bb5\u6570\uff0d1\uff1d\u5168\u957f\u00f7\u682a\u8ddd\uff0d1
\u5168\u957f\uff1d\u682a\u8ddd\u00d7(\u682a\u6570\uff0b1)
\u682a\u8ddd\uff1d\u5168\u957f\u00f7(\u682a\u6570\uff0b1)
2 \u5c01\u95ed\u7ebf\u8def\u4e0a\u7684\u690d\u6811\u95ee\u9898\u7684\u6570\u91cf\u5173\u7cfb\u5982\u4e0b
\u682a\u6570\uff1d\u6bb5\u6570\uff1d\u5168\u957f\u00f7\u682a\u8ddd
\u5168\u957f\uff1d\u682a\u8ddd\u00d7\u682a\u6570
\u682a\u8ddd\uff1d\u5168\u957f\u00f7\u682a\u6570
\u76c8\u4e8f\u95ee\u9898
(\u76c8\uff0b\u4e8f)\u00f7\u4e24\u6b21\u5206\u914d\u91cf\u4e4b\u5dee\uff1d\u53c2\u52a0\u5206\u914d\u7684\u4efd\u6570
(\u5927\u76c8\uff0d\u5c0f\u76c8)\u00f7\u4e24\u6b21\u5206\u914d\u91cf\u4e4b\u5dee\uff1d\u53c2\u52a0\u5206\u914d\u7684\u4efd\u6570
(\u5927\u4e8f\uff0d\u5c0f\u4e8f)\u00f7\u4e24\u6b21\u5206\u914d\u91cf\u4e4b\u5dee\uff1d\u53c2\u52a0\u5206\u914d\u7684\u4efd\u6570
\u76f8\u9047\u95ee\u9898
\u76f8\u9047\u8def\u7a0b\uff1d\u901f\u5ea6\u548c\u00d7\u76f8\u9047\u65f6\u95f4
\u76f8\u9047\u65f6\u95f4\uff1d\u76f8\u9047\u8def\u7a0b\u00f7\u901f\u5ea6\u548c
\u901f\u5ea6\u548c\uff1d\u76f8\u9047\u8def\u7a0b\u00f7\u76f8\u9047\u65f6\u95f4
\u8ffd\u53ca\u95ee\u9898
\u8ffd\u53ca\u8ddd\u79bb\uff1d\u901f\u5ea6\u5dee\u00d7\u8ffd\u53ca\u65f6\u95f4
\u8ffd\u53ca\u65f6\u95f4\uff1d\u8ffd\u53ca\u8ddd\u79bb\u00f7\u901f\u5ea6\u5dee
\u901f\u5ea6\u5dee\uff1d\u8ffd\u53ca\u8ddd\u79bb\u00f7\u8ffd\u53ca\u65f6\u95f4
\u6d41\u6c34\u95ee\u9898
\u987a\u6d41\u901f\u5ea6\uff1d\u9759\u6c34\u901f\u5ea6\uff0b\u6c34\u6d41\u901f\u5ea6
\u9006\u6d41\u901f\u5ea6\uff1d\u9759\u6c34\u901f\u5ea6\uff0d\u6c34\u6d41\u901f\u5ea6
\u9759\u6c34\u901f\u5ea6\uff1d(\u987a\u6d41\u901f\u5ea6\uff0b\u9006\u6d41\u901f\u5ea6)\u00f72
\u6c34\u6d41\u901f\u5ea6\uff1d(\u987a\u6d41\u901f\u5ea6\uff0d\u9006\u6d41\u901f\u5ea6)\u00f72
\u6d53\u5ea6\u95ee\u9898
\u6eb6\u8d28\u7684\u91cd\u91cf\uff0b\u6eb6\u5242\u7684\u91cd\u91cf\uff1d\u6eb6\u6db2\u7684\u91cd\u91cf
\u6eb6\u8d28\u7684\u91cd\u91cf\u00f7\u6eb6\u6db2\u7684\u91cd\u91cf\u00d7100%\uff1d\u6d53\u5ea6
\u6eb6\u6db2\u7684\u91cd\u91cf\u00d7\u6d53\u5ea6\uff1d\u6eb6\u8d28\u7684\u91cd\u91cf
\u6eb6\u8d28\u7684\u91cd\u91cf\u00f7\u6d53\u5ea6\uff1d\u6eb6\u6db2\u7684\u91cd\u91cf
\u5229\u6da6\u4e0e\u6298\u6263\u95ee\u9898
\u5229\u6da6\uff1d\u552e\u51fa\u4ef7\uff0d\u6210\u672c
\u5229\u6da6\u7387\uff1d\u5229\u6da6\u00f7\u6210\u672c\u00d7100%\uff1d(\u552e\u51fa\u4ef7\u00f7\u6210\u672c\uff0d1)\u00d7100%
\u6da8\u8dcc\u91d1\u989d\uff1d\u672c\u91d1\u00d7\u6da8\u8dcc\u767e\u5206\u6bd4
\u6298\u6263\uff1d\u5b9e\u9645\u552e\u4ef7\u00f7\u539f\u552e\u4ef7\u00d7100%(\u6298\u6263\uff1c1)
\u5229\u606f\uff1d\u672c\u91d1\u00d7\u5229\u7387\u00d7\u65f6\u95f4
\u7a0e\u540e\u5229\u606f\uff1d\u672c\u91d1\u00d7\u5229\u7387\u00d7\u65f6\u95f4\u00d7(1\uff0d20%)
\u957f\u5ea6\u5355\u4f4d\u6362\u7b97
1\u5343\u7c73=1000\u7c73 1\u7c73=10\u5206\u7c73
1\u5206\u7c73=10\u5398\u7c73 1\u7c73=100\u5398\u7c73
1\u5398\u7c73=10\u6beb\u7c73
\u9762\u79ef\u5355\u4f4d\u6362\u7b97
1\u5e73\u65b9\u5343\u7c73=100\u516c\u9877
1\u516c\u9877=10000\u5e73\u65b9\u7c73
1\u5e73\u65b9\u7c73=100\u5e73\u65b9\u5206\u7c73
1\u5e73\u65b9\u5206\u7c73=100\u5e73\u65b9\u5398\u7c73
1\u5e73\u65b9\u5398\u7c73=100\u5e73\u65b9\u6beb\u7c73
\u4f53(\u5bb9)\u79ef\u5355\u4f4d\u6362\u7b97
1\u7acb\u65b9\u7c73=1000\u7acb\u65b9\u5206\u7c73
1\u7acb\u65b9\u5206\u7c73=1000\u7acb\u65b9\u5398\u7c73
1\u7acb\u65b9\u5206\u7c73=1\u5347
1\u7acb\u65b9\u5398\u7c73=1\u6beb\u5347
1\u7acb\u65b9\u7c73=1000\u5347
\u91cd\u91cf\u5355\u4f4d\u6362\u7b97
1\u5428=1000 \u5343\u514b
1\u5343\u514b=1000\u514b
1\u5343\u514b=1\u516c\u65a4
\u4eba\u6c11\u5e01\u5355\u4f4d\u6362\u7b97
1\u5143=10\u89d2
1\u89d2=10\u5206
1\u5143=100\u5206
\u65f6\u95f4\u5355\u4f4d\u6362\u7b97
1\u4e16\u7eaa=100\u5e74 1\u5e74=12\u6708
\u5927\u6708(31\u5929)\u6709:1\3\5\7\8\10\12\u6708
\u5c0f\u6708(30\u5929)\u7684\u6709:4\6\9\11\u6708
\u5e73\u5e742\u670828\u5929, \u95f0\u5e742\u670829\u5929
\u5e73\u5e74\u5168\u5e74365\u5929, \u95f0\u5e74\u5168\u5e74366\u5929
1\u65e5=24\u5c0f\u65f6 1\u65f6=60\u5206
1\u5206=60\u79d2 1\u65f6=3600\u79d2
\u5c0f\u5b66\u6570\u5b66\u51e0\u4f55\u5f62\u4f53\u5468\u957f \u9762\u79ef \u4f53\u79ef\u8ba1\u7b97\u516c\u5f0f
1\u3001\u957f\u65b9\u5f62\u7684\u5468\u957f=\uff08\u957f+\u5bbd\uff09\u00d72 C=(a+b)\u00d72
2\u3001\u6b63\u65b9\u5f62\u7684\u5468\u957f=\u8fb9\u957f\u00d74 C=4a
3\u3001\u957f\u65b9\u5f62\u7684\u9762\u79ef=\u957f\u00d7\u5bbd S=ab
4\u3001\u6b63\u65b9\u5f62\u7684\u9762\u79ef=\u8fb9\u957f\u00d7\u8fb9\u957f S=a.a= a
5\u3001\u4e09\u89d2\u5f62\u7684\u9762\u79ef=\u5e95\u00d7\u9ad8\u00f72 S=ah\u00f72
6\u3001\u5e73\u884c\u56db\u8fb9\u5f62\u7684\u9762\u79ef=\u5e95\u00d7\u9ad8 S=ah
7\u3001\u68af\u5f62\u7684\u9762\u79ef=\uff08\u4e0a\u5e95+\u4e0b\u5e95\uff09\u00d7\u9ad8\u00f72 S=\uff08a\uff0bb\uff09h\u00f72
8\u3001\u76f4\u5f84=\u534a\u5f84\u00d72 d=2r \u534a\u5f84=\u76f4\u5f84\u00f72 r= d\u00f72
9\u3001\u5706\u7684\u5468\u957f=\u5706\u5468\u7387\u00d7\u76f4\u5f84=\u5706\u5468\u7387\u00d7\u534a\u5f84\u00d72 c=\u03c0d =2\u03c0r
10\u3001\u5706\u7684\u9762\u79ef=\u5706\u5468\u7387\u00d7\u534a\u5f84\u00d7\u534a\u5f84
\u6ee1\u610f\u8bf7\u91c7\u7eb3\u3002
S=AB
正方形C=4A
S=A*A
三角形S=AH/2
平行4边形S=AH
梯形S=（A+B）*H/2
圆C=D（圆周率“派”的字母我发不出来）
S=R*R*（圆周率“派”的字母我发不出来）
你能先告诉我。。。平方怎么表示么？
绛旓細3 鍥炲:楂樹腑鎵鏈鏁板鍏紡瀹氱悊 101鍦嗘槸瀹氱偣鐨勮窛绂荤瓑浜庡畾闀跨殑鐐圭殑闆嗗悎 102鍦嗙殑鍐呴儴鍙互鐪嬩綔鏄渾蹇冪殑璺濈灏忎簬鍗婂緞鐨勭偣鐨勯泦鍚 103鍦嗙殑澶栭儴鍙互鐪嬩綔鏄渾蹇冪殑璺濈澶т簬鍗婂緞鐨勭偣鐨勯泦鍚 104鍚屽渾鎴栫瓑鍦嗙殑鍗婂緞鐩哥瓑 105鍒板畾鐐圭殑璺濈绛変簬瀹氶暱鐨勭偣鐨勮建杩,鏄互瀹氱偣涓哄渾蹇,瀹氶暱涓哄崐 寰勭殑鍦 106鍜屽凡鐭ョ嚎娈典袱涓鐐圭殑璺濈鐩哥瓑鐨勭偣...
绛旓細涓銆佷笁瑙掑嚱鏁鍏紡 涓よ鍜屽叕寮 1銆乻in(A+B)=sinAcosB+cosAsinBsin(A-B)=sinAcosB-sinBcosA 2銆乧os(A+B)=cosAcosB-sinAsinBcos(A-B)=cosAcosB+sinAsinB 3銆乼an(A+B)=(tanA+tanB)/(1-tanAtanB)tan(A-B)=(tanA-tanB)/(1+tanAtanB)鍊嶈鍏紡 1銆乼an2A=2tanA/(1-tan2A)ctg2A=(ct...
绛旓細灏忓鍏ㄩ儴鏁板鍏紡锛氫竴銆佸叧绯昏〃杈惧紡 1銆佹瘡浠芥暟脳浠芥暟锛濇绘暟鎬绘暟梅姣忎唤鏁帮紳浠芥暟鎬绘暟梅浠芥暟锛濇瘡浠芥暟 2銆1鍊嶆暟脳鍊嶆暟锛濆嚑鍊嶆暟鍑犲嶆暟梅1鍊嶆暟锛濆嶆暟鍑犲嶆暟梅鍊嶆暟锛1鍊嶆暟3銆侀熷害脳鏃堕棿锛濊矾绋嬭矾绋嬅烽熷害锛濇椂闂磋矾绋嬅锋椂闂达紳閫熷害 3銆佽闄ゆ暟梅闄ゆ暟锛濆晢琚櫎鏁懊峰晢锛濋櫎鏁板晢脳闄ゆ暟锛濊闄ゆ暟 4銆佸崟浠访楁暟閲忥紳鎬讳环...
绛旓細灏忓鏁板鍥惧舰璁＄畻鍏紡 1 銆佹鏂瑰舰 c鍛ㄩ暱 s闈㈢Н a杈归暱 鍛ㄩ暱锛濊竟闀棵4 c=4a 闈㈢Н=杈归暱脳杈归暱 s=a脳a 2 銆佹鏂逛綋 v:浣撶Н a:妫遍暱 琛ㄩ潰绉=妫遍暱脳妫遍暱脳6 s琛=a脳a脳6 浣撶Н=妫遍暱脳妫遍暱脳妫遍暱 v=a脳a脳a 3 銆侀暱鏂瑰舰 c鍛ㄩ暱 s闈㈢Н a杈归暱 鍛ㄩ暱=(闀+瀹)脳2 c=2(a+b)闈㈢Н=闀棵楀 s=...
绛旓細v:浣撶Нh:楂榮;搴曢潰绉痳:搴曢潰鍗婂緞c:搴曢潰鍛ㄩ暱 (1)渚ч潰绉=搴曢潰鍛ㄩ暱脳楂 (2)琛ㄩ潰绉=渚ч潰绉+搴曢潰绉2 (3)浣撶Н=搴曢潰绉楅珮 (4)浣撶Н=渚ч潰绉2脳鍗婂緞 10.鍦嗛敟浣 v:浣撶Нh:楂榮;搴曢潰绉痳:搴曢潰鍗婂緞 浣撶Н=搴曢潰绉楅珮梅3 11.鍜屽樊闂鐨鍏紡 鎬绘暟梅鎬讳唤鏁=骞冲潎鏁 (鍜+宸)梅2=澶ф暟 ...
绛旓細楂樿冨繀澶鏁板鍏紡锛1銆佷笁瑙掑嚱鏁帮細sin(a+b)=sin(a)cos(b)+cos(a)sin(b)銆乧os(a+b)=cos(a)cos(b)-sin(a)sin(b)銆乼an(a+b)=(tan(a)+tan(b))/(1-tan(a)tan(b))銆乻in^2(a)+cos^2(a)=1銆1+tan^2(a)=sec^2(a)銆1+cot^2(a)=csc^2(a)2銆佸钩闈㈠嚑浣曪細鍕捐偂瀹氱悊锛歛^...
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...
绛旓細鏁板鐨勮繍绠楀畾寰鍏紡鏄涓嬶細1銆佸姞娉曚氦鎹㈠緥锛氫竴涓姞娉曠畻寮忎腑锛屼袱涓拰浜ゆ崲浣嶇疆鍐嶇浉鍔狅紝鍜屼笉鍙橈紝杩欏氨鏄姞娉曠殑浜ゆ崲寰嬨傚瓧姣嶅叕寮忥細a+b=b+a銆2銆佸姞娉曠粨鍚堝緥锛氫竴涓姞娉曠畻寮忎腑锛屽墠涓や釜鏁扮浉鍔犳垨鑰呮槸鍚庝袱涓暟鐩稿姞鍜屼笉鍙橈紝杩欏氨鏄姞娉曠殑缁撳悎寰嬨3銆佸噺娉曟ц川锛氫竴涓暟杩炵画鍑忓幓涓や釜鏁帮紝鍙互鐢ㄨ繖涓暟鍑忓幓鍙﹀涓...
绛旓細4.涓夎鍑芥暟鍏紡 sin(A+B)=sinAcosB+cosAsinB sin(A-B)=sinAcosB-sinBcosA cos(A+B)=cosAcosB-sinAsinB cos(A-B)=cosAcosB+sinAsinB 瀛︿範缁嗗垯 鏁板姒傚康鏄垵涓暟瀛︾殑鍩虹煶锛屾槸鏁板鐨勬濈淮妯″紡鍜屾柟娉曡浇浣撱傚緢澶氬鐢熼亣鍒扮殑鏁板瑙ｉ鍥伴毦锛岃拷婧牴婧愶紝寰寰鍙戠幇鏄敱浜庝粬浠湪鏌愪釜鏁板姒傚康澶勪骇鐢熶簡闂锛岃嚧浣...
绛旓細鏁伴噺鍏崇郴寮忥細鎻忚堪鏌愮鏁伴噺涔嬮棿鍏崇郴鐨勭瓑寮忋傚父鐢ㄧ殑鏁伴噺鍏崇郴寮 1銆佸崟浠访楁暟閲忥紳鎬讳环 2銆佸崟浜ч噺脳鏁伴噺锛濇讳骇閲 3銆侀熷害脳鏃堕棿锛濊矾绋 4銆佸伐鏁埫楁椂闂达紳宸ヤ綔鎬婚噺 5銆佸姞鏁+鍔犳暟锛濆拰 涓涓姞鏁帮紳鍜岋紜鍙︿竴涓姞鏁 琚噺鏁帮紞鍑忔暟锛濆樊 鍑忔暟锛濊鍑忔暟锛嶅樊 琚噺鏁帮紳鍑忔暟锛嬪樊 鍥犳暟脳鍥犳暟锛濈Н 涓涓洜鏁帮紳绉峰彟涓涓...
