Question

state with reason which of the following is a surd or not : 3√25*3√40

Answer 1

When we can't simplify a number to remove a square root (or cube root etc) then it is a surd.The surds have a decimal which goes on forever without repeating, and are Irrational Numbers.
3 root 25*3 root 40
=3*5 *3*2root 10
 on multiplying root 10 is left in irrational form.Thus the answer is in form of a surd

Answer 2

Answer:

Step-by-step explanation:

See the photo provided.