Question
Question: A and B are two given matrices such that the order of A is 3 × 4, If A¢B and BA¢ are both defined t...
A and B are two given matrices such that the order of A is
3 × 4, If A¢B and BA¢ are both defined then:
A
Order of B¢ is 3 × 4
B
Order of B¢A is 4 × 4
C
Order of B¢A is 3 × 3
D
B¢A is not defined
Answer
Order of B¢A is 4 × 4
Explanation
Solution
Let order of B is m × n
Q A¢B is define so m = 3
\ BA¢ is define so n = 4