Definition of square root

At the request of the math, the square root is a quite usual and frequent operation within this science , what implies a quantity that will be multiplied by itself and only once, and that allows us to obtain a certain number.

It should be noted that the use of this type of operation dates back to really remote times, since the ancient Egyptian peoples used it to solve some geometric problems. In the present it is symbolized as a v with an extension on the right line, even in calculators its function is symbolized in this way.
Said symbol it is due to German mathematician Christoph Rudolff , who proposed it in the century XVI to account for the operation at hand. The symbol is inspired by the lowercase r, rather it is a stylized and prolonged version of it.

Meanwhile, the root will be indicated by the lyrics r on Format lowercase, to be named as radical. It is worth noting that this lowercase r is shown with a species of prolonged arm on that number of which you want to obtain the root. The latter is formally known as

residing. On this and in what would be the opening of the v, the index that is the order of the root is placed.

In the case of the root in question, the square root, the index will be number 2 and it is not mandatory or necessary to place it in the radical.

From a square root we can obtain either a whole number As it is, the square root of 9 results in 3, or failing that, a decimal number, as we do with the square root of 5, which is 2.23.
It is also feasible to obtain estate squares of negative numbers, which give way to the complex numbers.

On the other hand, if the filing is elevated to the power that is indicated in the index, we will obtain as a result of that operation the value of the radicand precisely.
The opposite operation to the one at hand is empowerment.

Both the square root and its cubic pair are the most widely used.

Square Root Topics