Answers

2015-05-16T22:02:09+05:30
If,2√3= p/q
then √3= p/2q
but,we know that √3 is irrational & so, it was our contradiction
hence, 2√3 is not a rational but an irrational number

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2015-05-17T10:21:10+05:30
Let consider 2 root3 is an irrational.

2root3.. p|q 
  
but we know that 2root3 is an irrational.
Hence 2root3is an irrational.
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