To find the product of \(\sqrt{12}\) and the numbers given, we first calculate \(\sqrt{12}\):
\[ \sqrt{12} = \sqrt{4 \cdot 3} = \sqrt{4} \cdot \sqrt{3} = 2\sqrt{3} \]
Next, we will calculate the product of \(2\sqrt{3}\) with each of the numbers listed.
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With \( \frac{5}{6} \): \[ 2\sqrt{3} \cdot \frac{5}{6} = \frac{10\sqrt{3}}{6} = \frac{5\sqrt{3}}{3} \]
\(\frac{5\sqrt{3}}{3}\) is irrational because it is a non-integer multiple of \(\sqrt{3}\), which is itself irrational.
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With \( 4.1569 \): \[ 2\sqrt{3} \cdot 4.1569 = 8.3138\sqrt{3} \]
\(8.3138\sqrt{3}\) is also irrational for the same reason; it is a non-integer multiple of an irrational number.
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With \( 8867 \): \[ 2\sqrt{3} \cdot 8867 = 17734\sqrt{3} \]
As before, \(17734\sqrt{3}\) is irrational.
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With \( 2.6307 \): \[ 2\sqrt{3} \cdot 2.6307 = 5.2614\sqrt{3} \]
\(5.2614\sqrt{3}\) is irrational.
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With \( 4 \): \[ 2\sqrt{3} \cdot 4 = 8\sqrt{3} \]
Again, \(8\sqrt{3}\) is irrational.
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With \( 2974 \): \[ 2\sqrt{3} \cdot 2974 = 5948\sqrt{3} \]
\(5948\sqrt{3}\) is irrational as well.
Conclusion: The product of \(\sqrt{12}\) with any of the listed numbers results in an irrational number.