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सारणिकों के गुणधर्मों का प्रयोग करके सिद्ध कीजिए - `|(a,b,ax+by),(b,c,bx+cy),(ax+by,bx+cy,0)|=(b^2-ac)(ax^2+2bxy+cy^2)`

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सारणिकों के गुणधर्मों का प्रयोग करके सिद्ध कीजिए - `|(a,b,ax+by),(b,c,bx+cy),(ax+by,bx+cy,0)|=(b^2-ac)(ax^2+2bxy+cy^2)`
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[ संक्रिया `C_3toC_3-xC_1-yC_2` से ]
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