Question

6root 5 is rational or irrational

Answer 1

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Here's the required answer:-

6√5 is irrational.

Answer 2

6√5 is irrational
solve 
consider 6√5 as rational
where a and b r (where b not equal to 0) co-prime
therefore, 6√5=a/b
√5=a/6b
since, a and b r integers a/6b is rational, and also √5 is rational
but the contradict fact that √5 is irrational 
so, we conclude that 6√5 is irrational
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