Q. 194.0( 4 Votes )

For what value of

Answer :

Given two matrices are equal .i.e, A = B.


We know that if two matrices are equal, then the elements of each matrices are also equal.


2x + 1 = x + 3


2x – x = 3 – 1


x = 2 ……(1)


And 2y = y2 + 2


y2 – 2y + 2 = 0





(No real solutions) …… (2)


And y2 – 5y = – 6


y2 – 5y + 6 = 0


y2 – 3y – 2y + 6 = 0


y(y – 3) – 2(y – 3) = 0


(y – 3)(y – 2) = 0


y = 3 or 2 …… (3)


From the above equations we can say that A and B can’t be equal for any value of y.


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