if tanA =1/2,tanB=1/3 then tan (A+B) is
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the above is the answer
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answer:
tan(a+b)=tanA+tanB÷1-tanA tanB
(1÷2+1÷3)÷(1-(1÷2)×(1÷3)) :step1
step2:(1÷3)÷(1-1÷3)
step3: 1÷3+3
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