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Question

If α and β are the roots of the equation x2+3x+5=0, then α2+β2 is



A

1

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B

-1

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C

2

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D

-2

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Solution

The correct option is B

-1


α+β =3,αβ = 5α2+β2 = (α+β)2 2αβ = 910=1


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