Unknown is the feminine noun that indicates something unknown or unknown and what you want to know.
This word comes from the Latin word unknown with the prefix in (which indicates denial) and cognitus (which means something you know).
Some synonyms for unknown are: mystery, problem, secret, enigma, etc.
Sometimes unknown can also be an adjective. For example, an unknown person is someone unknown who does not reveal their identity or location.
In English the word unknown is translated by unknown. Ex: The police spent a lot of time searching, but the whereabouts of the child is still unknown. / The police spent a lot of time looking for it, but the child's whereabouts remain unknown.
unknown in math
In mathematics, an unknown is an unknown quantity or quantity that is intended to be discovered in order to solve a problem. Unknowns are represented by letters in equations and inequalities, which have an unknown value.
variable and unknown
In the context of mathematics, two commonly used words are variable and unknown
, which are sometimes wrongly used synonymously. Both the variable and the unknown are letters in an equation whose value is unknown.However, variable and unknown are different concepts. The unknown is a single value, it can only have one solution. For example, in the equation 2x + 3 = 7, the unknown X can only have one value, in this case 2.
On the other hand, the value of a variable can be different (as its name implies). Thus, in the equation X + Y = 20, there are infinitely many pairs of solutions (depending on the set of numbers that is considered to be the universe). Thus, X and Y can be 13 and 7, 10 and 10, 2 and 18, 14 and 6, 19 and 1, etc.