Question

$$\frac{ 1+( \sqrt{ 3 } \times \frac{ \sqrt{ 3 } }{ 3 } ) }{ ( \sqrt{ 3 } - \frac{ \sqrt{ 3 } }{ 3 } ) } - \frac{ \sqrt{ 3 } }{ 2 }$$

Answer

sqrt(3)/2

Solution


Use this rule: \(a \times \frac{b}{c}=\frac{ab}{c}\).
\[\frac{1+\frac{\sqrt{3}\sqrt{3}}{3}}{\sqrt{3}-\frac{\sqrt{3}}{3}}-\frac{\sqrt{3}}{2}\]
Simplify  \(\sqrt{3}\sqrt{3}\)  to  \(\sqrt{9}\).
\[\frac{1+\frac{\sqrt{9}}{3}}{\sqrt{3}-\frac{\sqrt{3}}{3}}-\frac{\sqrt{3}}{2}\]
Since \(3\times 3=9\), the square root of \(9\) is \(3\).
\[\frac{1+\frac{3}{3}}{\sqrt{3}-\frac{\sqrt{3}}{3}}-\frac{\sqrt{3}}{2}\]
Cancel \(3\).
\[\frac{1+1}{\sqrt{3}-\frac{\sqrt{3}}{3}}-\frac{\sqrt{3}}{2}\]
Simplify  \(1+1\)  to  \(2\).
\[\frac{2}{\sqrt{3}-\frac{\sqrt{3}}{3}}-\frac{\sqrt{3}}{2}\]
Simplify  \(\sqrt{3}-\frac{\sqrt{3}}{3}\)  to  \(\frac{2\sqrt{3}}{3}\).
\[\frac{2}{\frac{2\sqrt{3}}{3}}-\frac{\sqrt{3}}{2}\]
Invert and multiply.
\[2\times \frac{3}{2\sqrt{3}}-\frac{\sqrt{3}}{2}\]
Cancel \(2\).
\[\frac{3}{\sqrt{3}}-\frac{\sqrt{3}}{2}\]
Rationalize the denominator: \(\frac{3}{\sqrt{3}} \cdot \frac{\sqrt{3}}{\sqrt{3}}=\frac{3\sqrt{3}}{3}\).
\[\frac{3\sqrt{3}}{3}-\frac{\sqrt{3}}{2}\]
Cancel \(3\).
\[\sqrt{3}-\frac{\sqrt{3}}{2}\]
Simplify.
\[\frac{\sqrt{3}}{2}\]

Decimal Form: 0.866025