Prove that 3 divided by root 2 is irrational

- Prove that 3 divided by 2 root 5 is irrational
- Prove that 2 minus root 3 divided by 5 is irrational
- Prove that 3 root 2 divided by 4 is an irrational number
- Prove that 2 minus root 3 divided by 5 is an irrational number
- Prove that 2 under root 3 divided by 5 is an irrational number
- Prove that root 2 is irrational