8. Let x and y be vectors in 3-space, and suppose u is orthogonal to both x and y. Prove that u is also orthogonal to k₁
Posted: Fri Jul 08, 2022 5:37 am
8. Let x and y be vectors in 3-space, and suppose u is orthogonal to both x and y. Prove that u is also orthogonal to k₁x + k₂y, for every pair of scalars k₁ and k₂.