Question

rational or irrational 2-root 0f 5

Answer 1

Answer:

2-root 0f 5 is a irrational number

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Answer 2

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The number 2−√5 , is the difference between 2 and √5

2 is a rational number because it can be

represented as 2/1 where 2 and 1 are integers

√5 is an irrational number because it can’t be represented in the form of rational numbers.

We know that the sum or difference of a rational and an irrational number is an irrational number.

Hence, 2−√5 is irrational.

Explanation:

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