Question

if a + b + C is equal to 180 degrees then tan A + tan b + tan c equal to​

Answer 1

Step-by-step explanation:

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A = 180 - (B+C)

Tan (A) = Tan (180 - (B+C))

Tan A = - Tan (B+C)

Tan A = -((Tan B + Tan C)/(1 - Tan B.Tan C))

Tan A x (TanB.TanC -1) = Tan B + Tan C

On solving we get the answer = 1

I hope this helps!

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