EMLA Q.5

5The rank of a 3 x 3 matrix C (= AB), found by multiplying a non-zero column matrix A of size 3 x 1 and a non-zero row matrix B of size 1 x 3, is

Option : B

Explanation :

Let

A

=

a1

b1

c1

;

B

=

a2

b2

c2

;

∴

C

=

a1a2		a1b2		a1c2
b1a2		b1b2		b1c2
c1a1		c1b2		c1c2

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