Question

prove that 4-2 root 5 is irrational

Answer 1

Answer:

(4-5√2) = p/q. so, 4-5√2 is an irrational number... Since a, b are integers, then (a − 4b)/(−5b) represents a rational number.

Step-by-step explanation:

Answer 2

Answer:

We should consider it as rational...where the given number is =b/a