Question

Irrational number. Prove that 7 under root 5 is irrational number.​

Answer 1

Answer:

7√5 = p/q. As, we can see that p/7q is 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

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