I f A , B , C be the angle of a triangle, the ∑ c o t A + c o t B t a n A + t a n B Options: A . &nbsp1 B . &nbsp2 C . &nbsp-1 D . &nbsp-2

IfA,B,C be the angle of a triangle, the ∑cot A+cot Btan&

Question

I f A, B, C

be the angle of a triangle, the

\sum \frac{c o t A + c o t B}{t a n A + t a n B}

Options:

A . 1

B . 2

C . -1

D . -2

Answer: Option A
:
A
Option A is the correct answer.

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