1．像2＞3,4＞5这样的式子是不等式吗?答:这样的式子也是不等式,只是它们是不成立的不等式．不成立的不等式也是不等式．2．不等式的解和不等式的解集有何关系?答:不等式的解是使含未知数的不等式成立的未知数的值．一个含未知数的不等式可能有一个解、两个解、无数个解,也可能无解．一个不等式所有解的集合称为这个不等式的解集．解集只有一个．一个不等式无解,但它有解集,不过这个解集中没有一个值,集合是空的． 1. Are formulas such as 2>3, 4>5 inequality? A: Such formulas are also inequalities, but they are inequality inequalities. Unsatisfied inequalities are also inequalities. 2. What is the relationship between the solution of inequality and the solution set of inequality? A: The solution of inequality is the value of the unknown that holds the inequality with unknowns. An inequality with unknowns may have one solution, two solutions, innumerable solutions, or no solutions. The set of all solutions to an inequality is called the solution set of this inequality. There is only one solution set. An inequality has no solution, but it has a solution set, but this solution set does not have a value and the set is empty.