prove that 3√5 is ir rational
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S O L U T I O N :
Let we the 3√5 is a rational number.
So, we know that p and q are two integers and q ≠ 0.
Now;
∴ p/3q is a rational number , √5 is an irrational number.
So, rational number can't equal to an irrational number.
Hence, our contradiction is wrong.
Thus;
3√5 is an irrational number.
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