row operations and determinants

......... a^2 a 1
let A = b^2 b 1
......... c^2 c 1, a 3 x 3 matrix

use row operations to show that detA=(b-c)(c-a)(b-c)

thanks

Quote:

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Originally Posted by b0mb3rz

......... a^2 a 1
let A = b^2 b 1
......... c^2 c 1, a 3 x 3 matrix

use row operations to show that detA=(b-c)(c-a)(b-c)

thanks

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Answered here
http://www.mathhelpforum.com/math-he...-unknowns.html