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Geometric Progression

If α, β and...

Question

If $α, β$ and $γ$ are roots of the cubic equation $x^{3} + 3 x^{2} + 3 x + 2 = 0$ , then the value of $(α + β + γ)$ , is:

- 3

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0

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3

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9

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Solution

The correct option is A $- 3$
As $α, β, γ$ are roots of $x^{3} + 3 x^{2} + 3 x + 2 = 0$
Then $s_{1} = α + β + γ = - 3$

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