230,318 views
31 votes
31 votes
Prove that √ 2 - 1 is irrational​

User Octi
by
2.8k points

1 Answer

22 votes
22 votes

Answer:

a+b/2b is an rational no. because LHS is always equal to RHS. therefore our assumption is wrong. hence , 2√2-1 is an irrational number.

User Tstenner
by
2.2k points