AP EAMCET Engineering 2018 Apr 23 Shift 2 Paper

Let the roots of the equation α,β,γ,δ for the equation,
x4−2ax2+4bx2+8ax+16=0
α×β×γ×δ=16 ...... (I)
For the reciprocal equation roots are pα,pβ,pγ‌and‌p‌δ
So product of the roots is 1.
p4αβγδ=1 ...... (II)
From equation (I) and (II) ,
|p|=

1

2