Question

Which of the following are surd ? and if it is write two examples of like surd. √81 4 , √25 ,3 , √125 3 .​

Answer 1

Answer:

Like Surds: Like surds are those surds which has same radicand.

Unlike surds: Unlike surds are those surds which has different radicand.

a){

8

,

12

,

20

,

54

} can be written as {2

2

,2

3

,2

5

,3

6

}-- since radicands are different so it is a set of unlike surds.

b){

50

,

3

54

,

4

32

,} can be written as {5

2

,3

2

,2

2

} --since radicands are same so it is a set of like surds.

c){

8

,

18

,

32

,

50

} can be written as {2

2

,3

2

,4

2

,5

2

}--since radicands are same so it is a set of like surds