Sure! Here’s a problem involving two numbers whose sum is an irrational number:
Problem:
Let \( a = \sqrt{2} \) and \( b = 3 \).
Calculate the sum \( a + b \), and determine whether the result is a rational or irrational number.
Solution:
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We know that \( a = \sqrt{2} \), which is an irrational number.
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The number \( b = 3 \) is a rational number.
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Now, we calculate the sum:
\[ a + b = \sqrt{2} + 3 \]
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To determine whether \( \sqrt{2} + 3 \) is rational or irrational, we can use the fact that the sum of a rational number and an irrational number is always an irrational number.
Since \( 3 \) is rational and \( \sqrt{2} \) is irrational, their sum \( \sqrt{2} + 3 \) must also be irrational.
Therefore, the sum \( \sqrt{2} + 3 \) is an irrational number.