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Tasya [4]
3 years ago
5

Simplify the radical expression by rationalizing the denominator.

Mathematics
1 answer:
artcher [175]3 years ago
4 0
\frac{4}{\sqrt{21}} = \frac{4}{\sqrt{21}} \times \frac{\sqrt{21}}{\sqrt{21}} =\boxed{ \frac{4\sqrt{21}}{21}}
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Answer:

Step-by-step explanation:

EXAMPLE #1:

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(Multiply the two opposite corners with numbers; then divide by the other number.)

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brainly.com/question/21608293

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Answer:

Step-by-step explanation:

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