Question

Answer the following question:

Evaluate `|(101, 102, 103),(106, 107, 108),(1, 2, 3)|` by using properties

Answer 1

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]