Question

Construct a 2 × 2 matrix whose elements in the ith row and jth column are given by:

a_ij = i × j

Answer 1

We have a_ij = i × j

a₁₁ = 1 × 1 = 1

a₁₂ = 1 × 2 = 2

a₂₁ = 2 × 1 = 2

a₂₂ = 2 × 2 = 4

∴ The required matrix is `[(1, 2),(2,4)]`