Here we will show you how to calculate 4 divided by the square root of 21. In fact, we will show you two different ways of calculating 4 divided by √21. We start by displaying the problem we are solving in mathematical terms, as follows:
| 4 ÷ √21 = |
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Method 1
To solve the problem 4 divided by the square root of 21 using this method, we first find the square root of 21, and then we divide 4 by the answer to the square root of 21.
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≈ 0.8728716 |
Method 2
With this alternate method, we first move the radical from the denominator to the numerator by multiplying the numerator and denominator by √21 like this.
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Then we divide the numerator by the denominator to once again get the answer to 4 divided by the square root of 21.
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≈ 0.8728716 |
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4 divided by square root of 22
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