1.

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 Delta =27 and a^(2)+b^(2)+c^(2)=2 then the value of sum a^(2) b is

Answer»

`3(2sqrt(2)-p)`
`3(2sqrt(2)-R)`
`3(2sqrt(2)-q)`
`3(2sqrt(2)-p-q)`

Answer :B


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