Math, asked by ashishbajpai2314, 1 year ago

Show that $\left|\begin{array}{ccc}-2a&a+b&c+a\\a+b&-2b&b+c\\c+a&c+b&-2c\end{array}\right|$ = 4(a + b)(b + c)(c + a)

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Answered by sprao534

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