Maths-
General
Easy
Question
If
be that roots
where
, such that
and
then the number of integral solutions of λ is
- 5
- 6
- 2
- 3
Hint:
The definition of a quadratic as a second-degree polynomial equation demands that at least one squared term must be included. It also goes by the name quadratic equations. Here we have to find the number of integral solutions of λ.
The correct answer is: 3
A quadratic equation, or sometimes just quadratics, is a polynomial equation with a maximum degree of two. It takes the following form:
ax² + bx + c = 0
where a, b, and c are constant terms and x is the unknown variable.
Now we have given
are the roots of equation
where
, such that
and
.
The equation is:
4x2−16x+λ=0
First finding the discriminant, we get:
D=b2-4ac
Applying it, we get:
D=162−16λ>0
λ<16...........................(i)
Now, we have sum of roots as: 
we have product of the roots 
Now as per the condition, we have:
and
, multiplying both, we get:

D=b2-4ac
Applying it, we get:
D=162−16λ>0
λ<16...........................(i)
Now, we have sum of roots as:
we have product of the roots
Now as per the condition, we have:
Here we used the concept of quadratic equations and solved the problem. We also understood the concept of discriminant and used it in the solution to find the intervals. Therefore, the number of integral solutions of λ is in between
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