Question

Question: (please answer it as soon as possible)
Please answer question no.28

Answer 1

Answer:



Step-by-step explanation:

A rational number is one which can be written in the form of p/q where p and q are integers

1/2-root5 =p/q

1/2-p/q=root 5

q-2p/pq = root 5

if p and q are integers then q-2p/pq is a rational number,

but since this equals to root 5 , (we know that root 5 is irrational number)

this is not a rational number and hence is a irrational number.