Using properties of determinants, prove that ...

CBSE Class 12 Math 2019 Delhi Set 1 Solved Paper

Question : 15 of 29

Marks: +1, -0

Using properties of determinants, prove that

{|\table a^2+2 a , 2 a+1 , 1 ; 2 a+1 , a+2 , 1 ; 3 , 3 , 1|}=(a-1)^3

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