jelváltozás
Jelvaltozas refers to a change in the sign of a mathematical expression. This typically occurs when an expression is multiplied or divided by a negative number. For example, if a value is positive, multiplying it by -1 will result in a negative value, thus changing its sign. Conversely, a negative value will become positive.
In the context of equations, jelvaltozas is a fundamental concept. When you move a term from one
This principle also applies to inequalities. If you multiply or divide both sides of an inequality by