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Question

The rank of the matrix 60442148181414010 is ______ .
  1. 2

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Solution

The correct option is A 2
Let A=60442148181414010

R1R2

A21481860441414010

R2R2+3R1;R3R3+7R1

A214818042285808456116

R3R32R2

A21481804228580000

= Echelon form
Number of non - zero rows = 2

So ρ(A)=2

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