Find the sum of 1+3√2 and 1-3√2. Are these numbers irrational? Is their sum rational or irrational?
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Their sum gives us a rational value.
We would get a rational value.
=1+3√2 +1-3√2
-3√2 and +3√2 would get cancelled
Thus....
=1+1
=2
2 is a rational number
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