We are asked to find the values of the given expressions involving absolute values and radicals, and then choose the corresponding labels from the given options.

AlgebraAbsolute ValueRadicalsExpressionsSimplification
2025/6/26

1. Problem Description

We are asked to find the values of the given expressions involving absolute values and radicals, and then choose the corresponding labels from the given options.

2. Solution Steps

(1) 11|-\sqrt{11}|
The absolute value of a negative number is its positive counterpart.
11=11|-\sqrt{11}| = \sqrt{11}.
The corresponding label is エ.
(2) 39|3-9|
First, evaluate the expression inside the absolute value:
39=63-9 = -6.
Then, take the absolute value:
6=6|-6| = 6.
The corresponding label is イ.
(3) 311|3-\sqrt{11}|
Since 9=3\sqrt{9} = 3 and 16=4\sqrt{16} = 4, we know that 3<11<43 < \sqrt{11} < 4. Thus, 3113-\sqrt{11} is a negative number.
Therefore, 311=(311)=3+11=113|3-\sqrt{11}| = -(3-\sqrt{11}) = -3 + \sqrt{11} = \sqrt{11} - 3.
The corresponding label is キ.
(4) 2113|2\sqrt{11}-3|
Since 9=3\sqrt{9} = 3 and 16=4\sqrt{16} = 4, 11\sqrt{11} is slightly larger than 33. Thus, 2112\sqrt{11} is slightly larger than 66. Therefore, 21132\sqrt{11} - 3 is a positive number.
Therefore, 2113=2113|2\sqrt{11}-3| = 2\sqrt{11} - 3.
The corresponding label is ク.

3. Final Answer

5: エ
6: イ
7: キ
8: ク

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