si Tan(2a+b)=4, Tan(a+2b)=3; calcular Tan(3a)/Tan(3b)
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si Tan(2a+b)=4, Tan(a+2b)=3; calcular Tan(3a)/Tan(3b)
I wasn't able to parse your question, but the HE.NET team is hard at work making me smarter.