3. Prove that 3
is irrational.
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Answer:
In this case,
Let 3+√2 is an rational number such that
3+√2=a/b where a and b are integers and b is not equal to zero therefore 3+√2=a/b
√2=a/b-3
√2=(3b-a)/b
therefore √2=(3b-a)/b is rational.
as a,b and 3 are integers.
It means that √2 is Rational but this contradicts the fact that √2 is Irrational so it concludes that 3+√2 is Irrational.
Hope this helps.
Mark it as a BRAIN LIST.
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