2023中考理科数学公式：锐角三角函数公式
<p>两角和与差的三角函数：sin(A+B) = sinAcosB+cosAsinB</p><p>sin(A-B) = sinAcosB-cosAsinB ?</p><p>cos(A+B) = cosAcosB-sinAsinB</p><p>cos(A-B) = cosAcosB+sinAsinB</p><p>tan(A+B) = (tanA+tanB)/(1-tanAtanB)</p><p>tan(A-B) = (tanA-tanB)/(1+tanAtanB)</p><p>cot(A+B) = (cotAcotB-1)/(cotB+cotA)</p><p>cot(A-B) = (cotAcotB+1)/(cotB-cotA)</p>
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