Question

Show whether √5 is rational or irrational.

Answer 1

Answer:

√5 is an irrational number

Step-by-step explanation:

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Answer 2

Answer:

√5 is an irrational number.

Step-by-step explanation:

If √5 is rational, that means it can be written in the form of a/b, where a and b integers that have no common factor other than 1 and b ≠ 0. This means 5 divides a². That means it also divides a. Put the value of a² in equation (1).

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