CUET Preparation Today
CUET
-- Mathematics - Section A
Determinants
If matrix A is of order 2 × 3 and B of order 3 × 2, then
AB, BA both are defined and are equal
AB is defined but BA is not defined
AB is not defined but BA is defined
AB, BA are defined but are not equal
Matrix Order
A 2 × 3 B 3 × 2
as column (A) = row(B)
row(A) = column(B)
⇒ both area defined
⇒ AB, BA both area defined but are not equal
