Prove that √3+1 is irrational number?
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the most basic without any mathematical prove is that if any integer is added to any irrational no. then the sum will be an irrational no. only
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Let us assume that √3 + 1 is a rational number
Then , it is of the form p/q where p and q are integers and q =/= 0
So , √3 + 1 = p/q
=> √3 = p/q -1
=> √3 = (p - q)/q
Here (p-q)q is rational
So , √3 is also rational
But this contradicts the fact that √3 is irrational
This contradiction arises due to our wrong assumption that √3 + 1 is rational
Hence √3 + 1 is irrational
Hope it helped you...
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