SOLUTION: Prove that: tanx +tan(x+pi/3) +tan(x+2pi/3)=3

Question 221254: Prove that:
tanx +tan(x+pi/3) +tan(x+2pi/3)=3
Answer by Edwin McCravy(20060) (Show Source): You can put this solution on YOUR website!


Sorry, but that is NOT an identity.  For if 
we substitute :





And by special angles, , , 







This is false.  Perhaps you copied it wrong.

Edwin

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