Maths-

General

Easy

Question

Consider the cubic equation whose roots are x_{1}, x_{2}, and x_{3}

The value of equals

- 1
- 2
- 2 cos

Hint:

### In this question, we have given a cubic equation. which is.

We have given roots is . We have to find the . For that use the do and find the product of root and sum of root then substitute them into it.

## The correct answer is: 2

### Here we have to find the .

We know that

We have cubic equation that is ,

In this equation,

The sum of root =

And product of roots =

we have,

Therefore, the value of

The correct answer is 2.

In this question, we have to given the cubic equation and its root x1,x2,x3 and we have to find the

.Use, and sum of roots is and product of roots is b/a.

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