Question

evaluate sin(165)degrees

Answer 1

0.258819045102521 is the answer

Answer 2

sin 165º=sin(120+45)
=(sin120*cos45)+cos120*sin45)
=(√3/2*√2/2)+(-1/2*√2/2)
=((√6)/4)-√2/4
sin 165º=(√6-√2)/4
i hope it might hellp you...