Aptitude - Square Root and Cube Root

Exercise :: Square Root and Cube Root - Important Formulas

  1. Square Root:

    If x2 = y, we say that the square root of y is x and we write y = x.

    Thus, 4 = 2, 9 = 3, 196 = 14.

  2. Cube Root:

    The cube root of a given number x is the number whose cube is x.

    We, denote the cube root of x by x.

    Thus, 8 = 2 x 2 x 2 = 2, 343 = 7 x 7 x 7 = 7 etc.

    Note:

    1. xy = x x y

    2.
    x
    y
    = x = x x y = xy .
    y y y y