KCET2014MathematicsDefinite Integration
If ( A ) is ( 3 4 ) matrix and ( B ) is a matrix such that ( A^ B ) and ( B A^ ) are both defined, then ( B ) is of the type
Options
- A( 3 4 )
- B( ( 3 3 )
- C( 4 4 )
- D( 4 3 )
Correct answer
A. ( 3 4 )
Step-by-step solution
Given that A is 3 4 matrix and A ^ B = BA ^ Then B is also 3 4 matrix