NDA 2023 Mathematics question
Consider the following statements in respect of square matrices each of same order : 1. if is non-singular 2. If for every column matrix having rows then Which of the statements given above is/are correct?
Answer: (C)
Solution
1: if is non-singular, pre-multiplying by gives ; correct. 2: taking to be the column matrix with 1 in the th row and 0
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