If order of matrices A, B and C are 4 × 3, 5 × 4 and 3 × 7 respectively, then order of C' × (A' × B') is __________.
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 7 × 5
Order of A' = 3 × 4
Order of B' = 4 × 5
Order of C' = 7 × 3
⇒ order of $(A' × B') = 3 × 5$
⇒ order of $C'×(A'×B')=7× 5$