2023年常见数学知识大全推荐两角和公式讲解
<p>两角和公式</p><p>sin(A+B)=sinAcosB+cosAsinBsin(A-B)=sinAcosB-sinBcosA</p><p>cos(A+B)=cosAcosB-sinAsinBcos(A-B)=cosAcosB+sinAsinB</p><p>tan(A+B)=(tanA+tanB)/(1-tanAtanB)tan(A-B)=(tanA-tanB)/(1+tanAtanB)</p><p>ctg(A+B)=(ctgActgB-1)/(ctgB+ctgA)ctg(A-B)=(ctgActgB+1)/(ctgB-ctgA)</p>
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