Matrices and Determinants 4 Question 13
14. If the system of linear equations
has a non-zero solution
(a) -10
(b) 10
(c) -30
(d) 30
(2018 Main)
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Answer:
Correct Answer: 14. (b)
Solution:
- We have,
System of equation has non-zero solution, if
Solving Eqs. (i) and (ii), we get