Question

11. Show that : cos 30°
1 + cos 60°/
2​

Answer 1

LCos30°+sin60°/ 1+ cos60 + sin30

√3/2 +√3/2 / 1+ 1/2+1/2

2√3/2 /1+2/2

2√3/2 / 4/2 ( 2 and 2 get cancelled )

2√3/4 ( cancellation)

√3/2