Show that 7√5 is irrational

1.	Show that 7√5 is irrational
Answer» ANSWER__Let 7√5 be a rational number.So,7√5 = p/q.(p and q are co-prime number and q ≠ 0)=> √5 = p/7qAs, we can see that p/7q ia rational so √5 should also be rational. But this contradict the fact that √5 is irrational.So, by this we can say that 7√5 is irrational number.Hope this helps.?

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