【#第一文档网# 导语】以下是®第一文档网的小编为您整理的《三角函数倍角公式》,欢迎阅读!
sin(AB)sinAcosBcosAsinB sin(A-B)sinAcosB-sinBcosAcos(AB)cosAcosB-sinAsinB cos(A-B)cosAcosBsinAsinB两角和公式tan(AB)tanAtanBtanA-tanB(1-tanAtanB) tan(A-B)1tanAtanBcotAcotB1cotAcotB1cot(AB)(cotAcotB)cot(A-B)cotBcotA 倍角公式 sin22sincos cos2acos2a-sin2a2cos2a-11-2sin2a 2tanAcot2A-1 cot2A 1-tan2A2cota222232(n-1)sinsin()sin()sin()......sin[]0 nnnn222232(n-1)coscos()cos()cos()......cos[]0 nnnn22322)sin2()tantantan()tantan-tan()0 以及sin()sin(-332tan2A sin4A-4(cosAsinA(2sin2A-1))4tan2A-4tan3Atan4A1-6tan2Atan4A sin5A16sin5A-20sin3A5sinAtanA(5-10tan2Atan4A)tan5A1-10tan2A5tan4A四倍角公式:cos4A1(-8cos2A8cos4A) 五倍角公式:cos5A16cos5A-20cos3A5cosAsin6A2cosAsinA(2sinA1)(2sinA-1)(-34sin2A)4六倍角公式:cos6A(-12cos2A)(16cosA-16cos2A1) -6tanA20tan3A-6tan5Atan6A-115tan2A-15tan4Atan6A sin7A-(sinA(56sin2A-112sin4A-764sin6A))七倍角公式:cos7A(cosA(56cos2A-112cos4A64cos6A-7)) tanA(-735tan2A-21tan4Atan6A)tan7A-121tan2A-35tan4A7tan6A sin8A-8(cosAsinA(2sin2A-1)(-8sin2A8sin4A1)) 八倍角公式:cos8A1(160cos4A-256cos6A128cos8A-32cos2A) -8tanA(-17tan2A-7tan4Atan6A)tan8A1-28tan2A70tan4A-28tan6AtanA8A 6sin9AsinA(-34sin2A)(64sinA-96sin4A36sin2A-3九倍角公式:cos9AcosA(-34cosA)(64cosAA-96cosA36cosA-3) 2642tanA(9-84tan2A126tan4A-36tanA6AtanA8A)tan9A1-36tan2A126tan4A-84tan6A9tan8A sin10A2cosAsinA(4sin2A2sinA-1)(4sin2A-2sinA-1)(-20sin2A516sin4A)十倍角公式:cos10A(-12cosA)(256cosA-512cosA304cosA-48cosA1)28642 -2tanA(5-60tan2A126tan4A-60tan6A5tan8A)tan10A-145tan2A-210tan4A210tan6A-45tan8Atan10A 1-tan22tan2 cos2 tan2 万能公式sin1tan21tan21-tan22222tan sin半角公式1-cos 1cos cos22221cos 1cos cot21cos21costan 2sincossin()sin(-) 2cossinsin()-sin(-)2coscoscos()-sin(-) -2sinsincos()-cos(-)cos coscos2cossin 2222和差化积sinsin2sintantansin()sin(-) tan-tancoscoscoscossin()sin() -cotcotsinsinsinsincotcot 本文来源:https://www.dywdw.cn/6f92ca71bcd126fff7050b75.html