Question

If a, B. Y are the zeroes of the polynomial fx) = 2x³+6x²-4x+9
find
1/ab+1/ By+1/ ya
(A) 2/3
(B) 1/3
(C) 4/3
(D) zero​

Answer 1

option d is correct {Tex}

Answer 2

given alpha beta gamma are the zeros of the polynomial polynomial 2 x cube + 6 x square - 4 x + 9 is a cubic polynomial and we have to find 1 by a b + 1 by b y + 1 by Y a first we will find the value of alpha + beta and gamma that is sum of zeros then we will multiply or find the product of alpha gamma and beta from here we will get three values which will be helping for the solving of the equation the answer came out to be 1 by 3 when I had put the value of the alpha beta and gamma another method you can also do that when you will put the value of Alpha Beta and Gamma in the equation which is given in the cubic polynomial the answer will be 1 by 3