Is the sum of 4.2 and square root of 2 rational or irrational

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asked Mar 17, 2017 192k views

4 votes

Is the sum of 4.2 and square root of 2 rational or irrational

Mathematics
high-school

Letitbe asked

by Letitbe

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1 Answer

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The sum of an irrational number and a rational one
is always irrational. There's nothing you can add to
an irrational number to make it behave better.

JoseRo answered Mar 23, 2017

by JoseRo

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