Question

prove that 1 by 2-square root 5 is a irrational number

Answer 1

⏪⏪ HEY ⏩⏩

See the attachment

⭐⭐THANK U⭐⭐

Answer 2

Step-by-step explanation:

1. 1/2√5=p/q (where people and q are co prime no ) & square both side you get
2. q2=20p2 now q=20a
3. so p2= 20a2 now playing=20a
4. hence 20 is a common factor between people and q
5. so p and q are no more co prime no
6. then,1/2√5 is irrational no