SOLUTION: Prove that 2 + sqrt 27 is not rational. really stuck please help me.
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Question 807023: Prove that 2 + sqrt 27 is not rational. really stuck please help me.
Answer by sheldonbbtrocks(115) (Show Source): You can put this solution on YOUR website!
Well:
We can actually tell right off the bat this is irrational, because of the component.
The does not have a rational number as a perfect square. The is 5.1961524227066318805823390245176171008284157614311418.
Now if we add the two to this number we get:
7.1961524227066318805823390245176171008284157614311418
Now we need to determine this is an irrational number.
Rational numbers of counting numbers, natural numbers, integers, whole numbers, fractions, and repeating decimals ie.(2.2323...)
Since this number does not match any of these definitions, we can determine that is not rational.
Hope this Helps!
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