The solution set of inequality is .

From the above solution set, we will get the below inequalities.

and .

and

and .

Above two values are two factors of the rational function.

One factor is positive and other is less than or equal to zero.

Thus, the inequality symbol should be less than or equal to zero.

From the factor , is possible.

But the rational function cannot be defined, when the denominator part is zero.

Thus, is in the numerator part and is in denominator part.

Therefore, rational function is .

Rational inequality is .

Rational inequality is , whose solution set is .