Question

A matrix X has (a + b) rows and (a + 2) columns, while matrix Y has (b + 1) rows and (a + 3) columns. Both matrices XY and YX exist. Then a + b =​

Answer 1

Answer:

we can say that....(a+2)=(b+1)

(a+3)=a+b ..then b=3.. !and@=2

sum=5