How does: (-1/2) + (-sqrt(3)/2) = sqrt(2)
-1/2 - √ 3/2 =
[ -1 - √ 3] / 2 =
- [ 1 + √ 3 ] / 2 ≈ 1.366
But √ 2 ≈ 1.414
So......these are not equal......