Question

2+√5 is rational or not ?​

Answer 1

Answer:

√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.

Answer 2

Answer:

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No

Step-by-step explanation:

It is irrational

because :

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

The sum or difference of a rational and an irrational number is an irrational number.

Hence, 2−√5 is irrational.

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