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Question
Answer the following question:
Evaluate `|(101, 102, 103),(106, 107, 108),(1, 2, 3)|` by using properties
Sum
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Solution
Let D = `|(101, 102, 103),(106, 107, 108),(1, 2, 3)|`
By C3 – C2, we get,
D = `|(101, 102, 1),(106, 107, 1),(1, 2, 1)|`
By C2 – C1, we get,
D = `|(101, 1, 1),(106, 1, 1),(1, 1, 1)|`
= 0 .......[∵ C2 ≡ C3]
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Chapter 4: Determinants and Matrices - Miscellaneous Exercise 4(A) [Page 76]
