Mathematics · Matrices
यदि A = [aij] एक तत्समक आव्यूह (identity matrix) है, तो निम्नलिखित में से कौन सा सत्य है?
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- 1aij = 0 यदि i = j, और aij = 1 यदि i ≠ j
- 2सभी i, j के लिए aij = 1
- 3सभी i, j के लिए aij = 0
- 4aij = 0 यदि i ≠ j, और aij = 1 यदि i = j✓
सही उत्तर देखें
aij = 0 यदि i ≠ j, और aij = 1 यदि i = j
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