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Assertion (A ) :If 1,2,3aretherootsofax^3 +bx^2 + cx ++d =0thenrootsofax^3 + 2 bx^2 + 4 cx +8d =0are2,4,6 Reason (R ): Theequationwhoserootsare ktimesthe rootsof theequationf(x)=0Isf(x//k) =0thenthe truestatmentamongthe followingis :

Answer»

bothA and RaretrueR ISTHE correctexplanationof A
bothA andRare trueand Ris NOTTHE CORRECTEXPLANATION of A
Ais trueand Risfalse
A isfalseand Ristrue

Answer :A


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