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Prove that,abs((a^2+1,ab,ac),(ab,b^2+1,b...

Prove that,`abs((a^2+1,ab,ac),(ab,b^2+1,bc),(ca,cb,c^2+1))`=1+`a^2+b^2+c^2`.

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UNITED BOOK HOUSE-QUESTION PAPER 2016-EXERCISE
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  3. If p,q,r are not in geometric progression and |[1,q/p,alpha+q/p],[1,r/...

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  4. Prove that,abs((a^2+1,ab,ac),(ab,b^2+1,bc),(ca,cb,c^2+1))=1+a^2+b^2+c^...

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