What is 7/(sqrt(21)) ?

The solution to 7/(sqrt(21)) is (sqrt(7))/(sqrt(3))

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simplify 7/(sqrt(21))

simplify

\frac{7}{21}

\frac{7}{3}

Decimal Notation

1.52752 \dots

Solution steps

\frac{7}{21}

Factor

21 : 73

= \frac{7}{7 3}

Apply radical rule:

a = a a

7 = 77

= \frac{7 7}{7 3}

Cancel the common factor:

7

= \frac{7}{3}

x^{2} \times x^{2}

\frac{- 11}{10}

\frac{i ^{30} - 1}{i ^{15} - i}

\frac{10 !}{8 ! ( 10 - 8 ) !}

42 - 4