Question

9/sin(60)=10/sin(x)

Answer 1

It's been months since I've done this, I feel stupid:(

Answer 2

x= 10/9 sin(60)
x= 10/9 sin(pi-60)

Answer 3

srry

Answer 4

x= 10/9 sin(60)
x= 10/9 sin(180-60)

Answer 5

http://commons.wikimedia.org/wiki/File:Circular_Functions_of_Real_Numbers_Figure_10.svg