Question

please say solution fastly​

Answer 1

Answer:

take any value in place of A and B

Step-by-step explanation:

so that answer comes

Answer 2

Answer:

A+B+C=180°

∴tan(A+B/2)

=tan( 180°−C/2)

=tan(90°−C/2)

=cot(C/2)

Tan[A+B/2] = Cot C/2

Hence proved!

Step-by-step explanation:

Hope it helps you mate✌️