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Let Delta =|{:(-bc,b^(2)+bc,c^(2)+bc),(a^(2)+ac,-ac,c^(2)+ac),(a^(2)+ab,b^(2)+ab,-ab):}| and the equationx^(3)-px^(2)+qx-r=0has roots a,b,c, where a,b,c in R^(+) If a,b,c are in GP then

Answer»

<P>`R^(3)=p^(3)Q`
`p^(3)=r^(3)q`
`p^(3)=q^(3)r`
`q^(3=p^(3)r`

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