高中數學公式總結?高中數學必背公式：兩角和公式sin(a+b)=sinacosb+cosasinbsin(a-b)=sinacosb-sinbcosa，我來為大家科普一下關于高中數學公式總結?以下内容希望對你有幫助!
高中數學公式總結
高中數學必背公式：兩角和公式
sin(a+b)=sinacosb+cosasinbsin(a-b)=sinacosb-sinbcosa
cos(a+b)=cosacosb-sinasinbcos(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)/(ctgb-ctga)
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