CLASS-10
DIAGONAL ELEMENTS OF A MATRIX

Diagonal Elements of a Matrix –

In a given matrix, the (1, 1)th, (2, 2)th, (3, 3)th, elements are called the diagonal elements of the said or given matrix.

For example, if -

Then, a₁₁ = 5, a₂₂ = 2, and a₃₃ = 1 are its diagonal elements.