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1、1 高一数学三角比重要知识点总结三角部分：弧长-面积公式rl221rS扇rlS21扇180rnl三角比rysinrxcosxytanyxcotxrsecyrcsc同 角 三 角 比 的关系1cscsin?1seccos?1cottan?cossintansincoscot1cossin2222sectan122csccot1诱导公式、两角和差正弦、余弦、正切公式：sin2sinkcos2cosktan2tankcot2cotksinsincoscostantancotcotsinsincoscostantancotcotsinsincoscostantancotcotcos2sinsin2co
2、scot2tantan2cotcos2sinsin2coscot2tansin2cotsinsincoscoscossinsincoscoscossincoscossinsinsincoscossinsintantan1tantantantantan1tantantan名 师 归 纳 总 结|学 业 有 成，更 上 一 层 楼 第 1 页，共 2 页2 辅助角公式：222222sin,cossincossinbabbaababa二倍角的正弦、余弦和正切公式：cossin22sin2222sin211cos2sincos2cos2tan1tan22tan半角的余弦正弦和正切公式：2cos12co
3、s2cos12sincos1cos12tancos1sin2tansincos12tan万能置换公式：2tan12tan2sin22tan12tan1cos222tan12tan2tan2补充：sin12cos2sinsin12sin2cos2cos2sin解斜三角形正弦定理：RCcBbAa2sinsinsin余弦定理：Abccbacos2222bcacbA2cos222Baccabcos2222acbcaB2cos222Cabbaccos2222abcabC2cos222名 师 归 纳 总 结|学 业 有 成，更 上 一 层 楼 第 2 页，共 2 页文档编码:CK9R8O4P6X3 HY4
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5、1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL
6、4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K
7、10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档
8、编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9
9、R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6文档编码:CK9R8O4P6X3 HY4I2Y10X1K5 ZL4S5S1K10D6