Question

prove that 1/(2-√5) i an irrational number

Answer 1

Answer:

it is an irrational no.

Step-by-step explanation:

Let 1/2-√5 is a rational number. ... If p,q are integers then (q-2p)/2q is a rational number. Then,√5 is also a rational number. But this contradicts the fact that √5 is an irrational number

Answer 2

Answer:

Step-by-step explanation:

Let 1/2-√5 is a rational number. ... If p,q are integers then (q-2p)/2q is a rational number. Then,√5 is also a rational number. But this contradicts the fact that √5 is an irrational number.