kj19711972 kj19711972

10-09-2020
Mathematics

contestada

Is the square root of 21 a rational number

Respuesta :

WillBarth WillBarth

10-09-2020

Answer:

No

Step-by-step explanation:

But as we've stated, these prime factorizations are unique, so this can't be right. Therefore 21≠a2 , so a≠√21 , meaning that our earlier assumption of √21 being rational turns out to be wrong, therefore √21 is irrational.

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