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using properties of determinants, prove that: |(x^2+1,xy,xz)(xy,y^2+1,yz)(xz,yz.z^2+1)| = 1+x^2+y^2+z^2

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using properties of determinants, prove that:

|(x2+1,xy,xz)(xy,y2+1,yz)(xz,yz.z2+1)| = 1+x2+y2+z2

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properties of determinants

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