Question

question is below please answer it

Answer 1

Answer:

Hi mate

I hope this help you

Answer 2

Answer:

Let side of triangle is A, B &C respectively

A + B + C = 180°

A +B = 180°- C

(A+ B )/2 =:180/2 - C/2

A+B /2 = 90 - C/2

Therefore

LHS

Sin(A+B )/2 + Cos (A+B)/2

Sin (90°- C/2) + Cos ( 90°- C/2)

Cos C/2 + Sin C/2 = RHS

Therefore LHS = RHS Proved