Q. 2

Write in the form ‘nth root of a’ in each of the following numbers.1. (81)1/4 2. (49)1/23. (15)1/5 4. (512)1/95. (100)1/19 6. (6)1/7

1. (81)1/4

In general, a1/n is written as ‘nth root of a’.

So, (81)1/4 is written as ‘4th root of 81’.

2. (49)1/2

In general, a1/n is written as ‘nth root of a’.

So, (49)1/2 is written as ‘square root of 49’.

3. (15)1/5

In general, a1/n is written as ‘nth root of a’.

So, (15)1/5 is written as ‘5th root of 15’.

4. (512)1/9

In general, a1/n is written as ‘nth root of a’.

So, (512)1/9 is written as ‘9th root of 512’.

5. (100)1/19

In general, a1/n is written as ‘nth root of a’.

So, (100)1/19 is written as ‘19th root of 100’.

6. (6)1/7

In general, a1/n is written as ‘nth root of a’.

So, (6)1/7 is written as ‘7th root of 6’.

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