三角函數(shù)-反三角函數(shù)公式匯總(專業(yè)版)
【正文】 tan(a)半角公式sin()= cos()= tan()= cot()= tan()==和差化積 sina+sinb=2sincos sinasinb=2cossincosa+cosb = 2coscos cosacosb = 2sinsintanA+tanB=sin(A+B)/cosAcosB tanAtanB=sin(AB)/cosAcosB ctgA+ctgB=sin(A+B)/sinAsinB ctgA+ctgB=sin(A+B)/sinAsinB 積化和差 sinasinb = [cos(a+b)cos(ab)] cosacosb = [cos(a+b)+cos(ab)]sinacosb = [sin(a+b)+sin(ab)] cosasinb = [sin(a+b)sin(ab)]誘導(dǎo)公式 sin(a) = sina cos(a) = cosa sin(a) = cosa cos(a
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鄂ICP備17016276號-1