Question

Prove that 3-√5 is irrational​

Answer 1

The correct answer is the one above it says all the steps as well

Answer 2

Explanation:

But we know that √5 is an irrational number. So, {(a - 3b)/b} should also be an irrational number. Hence, it is a contradiction to our assumption. Thus, 3 + √5 is an irrational number.