Tuesday 31 January 2017

Math : Roots

Square root

The square root of a number is a value that when multiplied by itself gives the number.

Example 1

2*2 = 4, here to get the square root of 4 we multiplied 2 by itself which gives 4.
Hence the square root of 4 is 2
That is, √4 = 2

Example 2

3*3 = 9, here to get the square root of 9 we multiplied 3 by itself which gives 9.
So the square root of 9 is 3
That is, √9 = 3

Cube root

The cube root of a number is a value that when multiplied by itself 3 times gives the number

Example

2*2*2 = 8, here to get the cube root of 8 we multiplied 2 by itself 3 times gives 8.
Hence the cube root of 8 = 2



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