Question

How to Rationalize Irrational Numbers?
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Answer 1

Step-by-step explanation:

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Answer 2

The expression x(x + 1) is even for any integer x (since either x or x + 1 is even). So this says that 5 × even + 1 = even, or odd = even. Since there is no integer that is both even and odd, we have reached a contradiction and √5 is thus irrational.