Respuesta :

DeanR

The square root of 5,


[tex]\sqrt 5[/tex]


is irrational. Of the natural numbers, only the perfect squares 1,4,9,16,25,... have rational square roots.


If a natural number has a rational square root that square root must necessarily be a natural number. Can you see why?

The answer would be: [tex] \sqrt{5} [/tex] is an irrational number. Why?


Because the definition of an irrational number is that: It's a number that can not be expressed as a fraction, or as a whole number.


And you can not make [tex] \sqrt{5} [/tex] a fraction.


So that's why it's an irrational number.


Hope this helped :)

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