Given that A is a non-singular matrix of order 3 such that A2 = 2A, then value of |2A| is:

(a) 4

(b) 8

(c) 64

(d) 16

Asked by Abhisek | 2 years ago |  90

1 Answer

Solution :-

Right answer is (c) 64




=|A|2=23|A| as |KA|

=Kn|A| for a matrix of order n

 either |A|=0 or |A|=8

But A is non-singular matrix


Answered by Pragya Singh | 2 years ago

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