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.
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 3√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 / √y = (√x / √y) X (√y / √y) = √xy / y
Question 1
Q1. A man plants 15376 apple trees in his garden and arranges them so that there are as many rows as there are apples trees in each row. The number of rows is :
