CUET Preparation Today
If order of matrices A, B and C are 4 × 3, 5 × 4 and 3 × 7 respectively, then order of C' × (A' × B') is __________. |
7 × 5 4 × 5 4 × 3 5 × 7 |
7 × 5 |
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 $C'×(A'×B')=7× 5$ |
