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V125BC [204]
3 years ago
12

Try to prove the hypothesis from part B that the sum of a rational and an irrational number is an irrational number.

Mathematics
1 answer:
Maurinko [17]3 years ago
8 0

The next step of your proof is to subtract (a/b) from both sides.

Then you get, x = (m/n) - (a/b)

Since rationals are closed over addition, (m/n) + (-a/b) is a rational number.

Therefore, x (an irrational number) = a rational number                            <em>This is a false statement which is a contradiction. So, the assumption was incorrect.</em>

Thus, the sum of a rational and irrational number is an irrational number. QED

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