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If a^(2)+b^(2)+c^(2)=1 then |(a^(2)+(b...

If `a^(2)+b^(2)+c^(2)=1` then
`|(a^(2)+(b^(2)+c^(2))costheta, ab(1-cos theta),ac(1-cos theta)),(ba(1-cos theta),b^(2)+(c^(2)+a^(2))cos theta,bc(1-cos theta)),(ca(1-cos theta),cb(1-cos theta),c^(2)+(a^(2)+b^(2))costheta)|` equals

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