Question

If alpha and beta are zeros of x^2-x-4. Find the value of 1/alpha + 1/beta -alphabeta

Answer 1

Step-by-step explanation:

alpha + beta = 1

alpha beta = -4

1/alpha + 1/beta - alpha*beta

(alpha+beta)/alpha*beta - alpha* beta

(1/-4) - (-4)

-1/4 + 4

4 - 1/4

15/4

Answer 2

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