using property of determinant and without expanding prove that

[1 1+p 1+p+q ]

[2 3+2p 1+3p+2q ] =i

[3 6+3p 1+6p+3q ]

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- Jul 8th 2012, 10:08 PMsreesujaDeterminant
using property of determinant and without expanding prove that

[1 1+p 1+p+q ]

[2 3+2p 1+3p+2q ] =i

[3 6+3p 1+6p+3q ] - Jul 9th 2012, 12:49 AMgirdavRe: Determinant
Consider the third line, and do $\displaystyle L_3\leftarrow L_3-L_2-L_1.$