how to prove root2 is irrational ?
Asked by kasagee1971
3rd April 2015,
2:07 PM
Answered by Expert
Answer:
Let us assume that 
is rational.
Hence a and b have at least 2 as a common factor, which means a and b are not co-prime.
This contradicts our assumption that is rational.
Hence, is irrational.
Answered by Expert
6th April 2015,
4:54 PM
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