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सिद्ध कीजिए कि: |(a,a-c,c+b),(a+b,b,...

सिद्ध कीजिए कि:
`|(a,a-c,c+b),(a+b,b,c-a),(a-b,b+a,c)|=(a+b+c)(a^(2)+b^(2)+c^(2)).`

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