Question

49.
If number of non-singular 3 x 3 matrices formed with 5 0's and 4 I's
(using all the elements) is n then
A) n is a perfect square
B) n is divisible by two different primes.
C) n is divisible by 3 different primes
D) None of these​

Answer 1

Answer:

Step-by-step explanation:

First row with exactly one zero; total number of cases =6

First row 2 zeros we get one more case.

Total we get more than 7

Therefore, atleast 7 values exist.

c) correct

Answer 2

Answer:

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Step-by-step explanation:

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