Question

Prove that 3+2×√5 is irrational (Proceed with justifying √5 as irrational)​

Answer 1

Step-by-step explanation:

To prove: 3 + 2√5 is an irrational number. Proof: Let us assume that 3 + 2√5 is a rational number. This shows (a-3b)/2b is a rational number.