Mathematics, 28.07.2019 20:30 live4dramaoy0yf9
Verify the identity tan(x1+x2+x3)=tan(x1)+tan(x2)+tan(x 3)-tan(x1)tan(x2)tan(x3)/1-tan(x1)t an(x2)-tan(x2)tan(x3)-tan(x1)tan(x3 ), what should you do first?dont answer just to get points only answer if you know the answer.
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Verify the identity tan(x1+x2+x3)=tan(x1)+tan(x2)+tan(x 3)-tan(x1)tan(x2)tan(x3)/1-tan(x1)t an(x2)-t...
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