show that 5+ root 7 is an irrational number
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here is the answer for your question
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hope it helps you
Step-by-step explanation:
let 5+root 7 be a rational no.
and it is equal to a/b where b is not equal 0
= 5 + root 7 = a/ b
=root 7 = a/b -5
= ^7 = a/b - 5/1
So, if root 7 = a/b - 5/1
________
and root 7 = p/q form
so, root 7 is a rational no.
but we know that root 7 is a rational no.
so this statement is wrong
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