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Popular >

simplify sqrt(\sqrt{21)}

Solution

simplify

21

Solution

+1

Decimal Notation

2.14069 \dots

Solution steps

21

Apply radical rule:

a = a^{\frac{1}{2}}

= (2 1^{\frac{1}{2}})^{\frac{1}{2}}

Apply exponent rule:

(a^{b})^{c} = a^{b c}

= 2 1^{\frac{1}{2} \cdot \frac{1}{2}}

\frac{1}{2} \cdot \frac{1}{2} = \frac{1}{4}

= 2 1^{\frac{1}{4}}

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Frequently Asked Questions (FAQ)

What is sqrt(\sqrt{21)} ?
The solution to sqrt(\sqrt{21)} is \sqrt[4]{21}