Let A be a 4 3 real matrix with rank 2...

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Let A be a 4 × 3 real matrix with rank 2. Which one of the following statement is TRUE?

A. Rank of A^TA is less than 2

B. Rank of A^TA is equal to 2

C. Rank of A^TA is greater than 2

D. Rank of A^TA can be any number between 1 and 3

Answer: Option B

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