Find the cosines of the angle $\theta$ between $\mathbf{u}$ and $\mathbf{v}$:
u=[−3,2,5]\mathbf{u} = [-3, 2, 5]u=[−3,2,5], v=[1,6,−2]\mathbf{v} = [1, 6, -2]v=[1,6,−2]
Discuss theoretical concepts, mathematical formulas, and architectural foundations.
`backticks`