Enter the number under the root (2√ ___):
The result of extracting the root of the 2nd power of the number:
How to extract the 2nd root of a number?
The 2nd root is denoted by the sign — 2√
2√y = x (root 2 of y, equals x)
x2 = y (in turn, when raising x to the 2nd power, we get the required number y)