Question

Prove that: 4+ /5 is an irrational number​

Answer 1

Answer and Step-by-step explanation:

√5 is already an irrational number as its value is not ending

Therefore any number operated with and irrational number, the answer will be an irrational number

Answer 2

Answer:

Here, 4q - p/q is rational but this equals to an irrational number i.e., √5 But this is impossible because a rational number can't be equal to an irrational number So this contradiction arrises because of our wrong assumption, Hence, 4 - √5 is irrational.