Question

sin(105) =

the answer is (sqrt(2) + sqrt(6)) / 4 but I don't get how to get how

Answer 1

\[105=60+45\]

Answer 2

use the "addition angle" formula for sine

Answer 3

\[\sin(A+B)=\sin(A)\cos(B)+\sin(B)\cos(A)\] replace \(A\) by \(60^\circ\) and \(B\) by \(45^\circ\)

Answer 4

alright alright get this dude, the answer might be more then 12

Answer 5

that would be a miracle since sine is never larger than one

Answer 6

i said might
come on dudes i look @ signs on the road all the time