Find the exact value sin -75

Answer 1

Since sinx is an odd function, sin(-75°) = -sin75° = -sin(30° + 45°)

= -[sin30°cos45° + cos30°sin45°] = -[(1/2)(√2/2) + (√3/2)(√2/2)] = (-√2 - √6) / 4

Answer 2

You simply place this in your sci-fi calculator and compute......Right?