1.

Using properties of determinants, prove that ∣∣∣∣a2+2a2a+112a+1a+21331∣∣∣∣=(a−1)3

Answer» Using properties of determinants, prove that ∣∣
∣
∣
a2+2a2a+112a+1a+21331∣∣
∣
∣
=(a−1)3


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