Question

if tan A=1/2,tanB =1/3 find (A +B) if tan (A+B) = (tanA+tanB)/(1-tanAtanB)

Answer 1

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Answer 2

Answer

A + B = 45

Step-by-step explanation:

tan A = ½

tan B = ⅓

tan (A+B) = (tan A + tan B)/(1-tan A tan B)

                 =     ½     + ⅓     =  ⅚ = 1

                         1-½ * ⅓          ⅚

So, tan (A + B) = 1

      tan 45 is also = 1

Hence, A + B = 45

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