Evaluate
\frac{\sqrt{3}}{3}\approx 0.577350269
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\frac{\sqrt{1}}{\sqrt{2+1}}
Subtract 1 from 2 to get 1.
\frac{1}{\sqrt{2+1}}
Calculate the square root of 1 and get 1.
\frac{1}{\sqrt{3}}
Add 2 and 1 to get 3.
\frac{\sqrt{3}}{\left(\sqrt{3}\right)^{2}}
Rationalize the denominator of \frac{1}{\sqrt{3}} by multiplying numerator and denominator by \sqrt{3}.
\frac{\sqrt{3}}{3}
The square of \sqrt{3} is 3.
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