(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

If tan(A+B) = 3 and tan(A-B) = 2, find tan2A and tan2B

2. Relevant equations

tan (A - B) = (tan A - tan B)/(1 + (tan A)(tan B) and similar sort of one for tan(A+B)

3. The attempt at a solution

i did some calculation and got tanA= (1-2tanB)/5tanB

after which there seems some thing missing for the proceeding calculations....

wonder what to do next?

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# Homework Help: Trigonometry- addition and factor forumla

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