Question

If A, B and C are the angles of a ∆ABC, prove that tan(C+A/
2) = cotB/2

Answer 1

The solution is given in the above attachment.

Answer 2

Step-by-step explanation:

A+B+C=180

A+C=180-B

A+C/2=90-(B/2)

tan(A+C/2)=tan(90-B/2)

tan(A+C/2)=cotB/2