Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Determinants Application of Determinants
Which one of the following options is incorrect?
For a square matrix A in the matrix equation AX = B.
1
If |A| ≠ 0, then there exists a unique solution
2
If |A| = 0 and (adj A)B ≠ 0 then there is no solution
3
If |A| ≠ 0 and (adj A)B ≠ 0 then there is no solution
4
If |A| = 0 and (adj A)B = 0 then system has infinitely many solutions