Question

prove that 7 root 5 is irrational
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Answer 1

Answer:

7√5 = p/q.

(p and q are co-prime number and q ≠ 0)

=> √5 = p/7q

As, we can see that p/7q ia rational so √5 should also be rational. But this contradict the fact that √5 is irrational.

Answer 2

Step-by-step explanation:

let 7root 5 rational number .So 7 root 5=p/q so by this we can say that 7 root 5 is irrational number.