Mathematics, 29.07.2019 15:00 phillipsangela014

To verify the identity tan(x1+x2+x3)= tanx1+tanx2+tanx3-tanx1tanx2tanx3/1 -tanx1tanx2-tanx2tanx3-tanx1tanx3, what should you do first?

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To verify the identity tan(x1+x2+x3)= tanx1+tanx2+tanx3-tanx1tanx2tanx3/1 -tanx1tanx2-tanx2tanx3-tan...

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