Mathematics for IGCSE & O level - Powers And Roots (Section 1 - No. 37)
What does the square root of a number represent?
The number multiplied by itself.
The number that, when multiplied by itself, equals the original number.
The number added to itself.
The cube of the original number.
解释
The square root of a number is a value that, when multiplied by itself, equals the original number.