Create a problem where the sum of the two numbers is an irrational number...

3 answers

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:

  1. We know that \( a = \sqrt{2} \), which is an irrational number.

  2. The number \( b = 3 \) is a rational number.

  3. Now, we calculate the sum:

    \[ a + b = \sqrt{2} + 3 \]

  4. 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.

ok but what's the answer

The answer to the problem is that the sum \( a + b = \sqrt{2} + 3 \) is an irrational number.

If you wanted a numerical approximation, \( \sqrt{2} \) is approximately \( 1.414 \), so:

\[ \sqrt{2} + 3 \approx 1.414 + 3 = 4.414 \]

However, the exact value is \( \sqrt{2} + 3 \), and it is confirmed to be irrational.