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A, ß and r are the zeroes of thecubic polynomial ax³ +bx²+cx+d,then 1/alpha beta+1/beta gamma+1/gamma alpha |
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Answer» Fundamental facts: If α,β,γ are the ROOTS of cubici EQUATION ax 3 +BX 2 +cx+d=0 then α+β+γ=− a b
αβ+βγ+γα= a c
and αβγ=− a d
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