Question

show that 5root 7 is an irrational no​

Answer 1

Answer:

Let, 5+2√7 be rational. Therefore, 5+2√7 =a/b where a and b are integers having no common factors other than 1. Since, a and b are integers, therefore, √7 is rational. This contradicts the fact that √7 is irrational.

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Answer 2

Hey mate here's ur answer plz Mark as brain list..

5✓7..

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