enxisin325 enxisin325

21-03-2021
Mathematics

contestada

If alpha and beta are two roots of the equation 2x^2 +kx+1=0,
find the values of k.

Respuesta :

Amarokwolf Amarokwolf

21-03-2021

Answer:

αβ=c/a

α+β=-b/a

α+β=-k/2

-(α+β)²=k

-α²-2αβ-β²=k

-α²-2(1/2)-β²=k

-α²-1-β²=k

Step-by-step explanation:

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