Q. 294.8( 5 Votes )

If <span lang="EN

Answer :

Given :


To find : x


Formula used :



Where cij = ai1b1j + ai2b2j + ai3b3j + ……………… + ainbnj


If A is a matrix of order a b and B is a matrix of order c d ,then matrix AB exists and is of order a d ,if and only if b = c


= 0


=


=


=


= = = 0


2x2 + 6x + 4 = 0


x2 + 3x + 2 = 0


(x + 1)(x + 2) = 0


x + 1 = 0 or x + 2 = 0


x = -1 or x = -2


x = -1 or x = -2


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