Prove that 3 root 5 is a rational number

- Prove that 3 2 root 5 is a rational number
- Prove that 3 minus root 5 is a rational number
- Prove that 3 upon 2 root 5 is a rational number
- Prove that 2 3 root 5 is not a rational number
- Prove that 5 minus under root 3 is a rational number
- Prove that root 5 minus root 3 is not a rational number answer
- Given that root 2 is irrational prove that 5 3 root 2 is a rational number
- Prove that root 2 is irrational