Question

please tell me the answer​

Answer 1

Solution : By taking L.C.M of dinominators

→ 1/α + 1/β = (α + β)/αβ

Since we know that,

→ α + β = - Coefficient of x/Coefficient of x²

→ α + β = - 1/1 = - 1

→ αβ = Constant Term/Coefficient of x²

→ αβ = 1/1 = 1

∴ (α + β)/αβ = - 1/1

→ - 1

Answer : - 1

HOPE IT HELP U

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Answer 2

Answer:

The given quadratic polynomial is x2+2x+1.

On using the splitting middle term method, we get:

x2+x+x+1

(x2+x)+(x+1)

x(x+1)+1(x+1)

(x+1)(x+1)

By zero product theorem,

Either x+1=0 or x+1=0

=>x=-1 =>x=-1

Here, alpha= -1 and beta=-1

So, 1/alpha+1/beta

1/-1+1/-1

1/-1-1/1

1+1/-1

2/-1

-2 Ans.

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