Grade 12th passTrigonometry
a tanA+b tanB =[a+b]tan{B+C/2} THEN COMMENT ABOUT THE TRIANGLE ABC {A}right angled {b}equilateral {c}isosceles {d}none of these
a tanA+b tanB =[a+b]tan{B+C/2} THEN COMMENT ABOUT THE TRIANGLE ABC {A}right angled {b}equilateral {c}isosceles {d}none of these
