evaluate alpha^-1 + beta^-1 if alpha and beta are the zeros of polynomial f(x)=9x^2-3x-2​

1 thought on “evaluate alpha^-1 + beta^-1 if alpha and beta are the zeros of polynomial f(x)=9x^2-3x-2​”

1. Step-by-step explanation:

   f(x) = 9x²-3x-2

   acc to ques , alpha and beta is the zeros of polynomial f(x)

   so, alpha + beta = -(-3)/9 = 1/3 and apla × beta = (-2)/9

   we have to find 1/(apha) + 1/(beta)

   = [(apha) + (beta)]/(apha)×(beta)

   = 1/3÷(-2)/9

   = -3/2 is the answer..

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