​if tan alpha = root 3 and tan beta = 1/ root 3 , find the value of sin (alpha + beta)

answer = 1
just substitute the values in right angle triangle  and find sin alpha and sin beta 
then apply it in formula,
           sin(alpha+beta) = sin alpha. cos beta + cos alpha. sin beta
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also find cos alpha and cos beta 
sorry i left those...
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