Question

State which of the following are surds,Justify 1) √961
2) √-6
3) 1/√15
4) 3 √17​

Answer 1

Answer:

Surds are numbers left in root form to express its exact value.

As

3

51

cannot be expressed without root form. Hence, it is a surd.

Also,

4

16

=2,

4

81

=3,

256

=16. So, they are not surd.