prove that 7+√5 is a irrational number
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Step-by-step explanation:
Let us assume 7 + root 5 is rational
p/q = 7 + root 5
root 5 = p/q + 7
root 5 = p+7q/q
It is a contradiction as root 5 is irrational and p+7q/q is irrational
Therefore 7 + root 5 is irrational
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