Question

Find a unit vector orthogonal to u and v. (The Cross Product of Two Vectors, Section)
U= -3i + 2j - 5k, V= (1/2)i - (3/4)j + (1/10)k

Answer 1

one method is to write a 3x3 matrix

write out i, j, k along the top row
place the coefficients -3, 2, -5 along the second row (from first vector U)
place the coefficients 1/2, -3/4, 1/10 along the second row (from second vector V)