What is the angle between u⃗=(1,0,1)\vec{u} = (1, 0, 1)u=(1,0,1) and v⃗=(1,1,0)\vec{v} = (1, 1, 0)v=(1,1,0)?
60°60°60°
45°45°45°
90°90°90°
30°30°30°