Prove that 5 minus under root 2 is irrational

- Prove that 5 minus root 2 is irrational
- Prove that 5 minus root 2 is irrational number
- Prove that root 3 minus root 2 and root 3 + root 5 is irrational
- Prove that 5 minus 2 root 3 is irrational number
- Prove that 2 minus under root 5 is an irrational number
- Prove that 1 upon 2 minus under root 5 is an irrational number
- Prove that 2 minus under root 3 upon 5 is an irrational number
- Неравенства с нуля
- √ 5
- Неравенства с корнем
- Неравенства как решать