Here we will show you how to calculate 21 divided by the square root of 2. In fact, we will show you two different ways of calculating 21 divided by √2. We start by displaying the problem we are solving in mathematical terms, as follows:
| 21 ÷ √2 = |
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Method 1
To solve the problem 21 divided by the square root of 2 using this method, we first find the square root of 2, and then we divide 21 by the answer to the square root of 2.
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≈ 14.8492424 |
Method 2
With this alternate method, we first move the radical from the denominator to the numerator by multiplying the numerator and denominator by √2 like this.
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Then we divide the numerator by the denominator to once again get the answer to 21 divided by the square root of 2.
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≈ 14.8492424 |
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