Multiple Choice Question (MCQ)
Rationalizing the denominator \dfrac{1}{\sqrt{2} } gives

×
2

×
\sqrt{2}

×
\dfrac{2}{\sqrt{2} }

✓
\dfrac{\sqrt{2} }{2}
Rationalizing the denominator \dfrac{1}{\sqrt{2} } gives
2
\sqrt{2}
\dfrac{2}{\sqrt{2} }
\dfrac{\sqrt{2} }{2}
Multiply both nominator and denominator with \sqrt{2} to rationalize the denominator
\dfrac{1}{\sqrt{2} }
=\dfrac{1}{\sqrt{2} }\cdot \dfrac{\sqrt{2} }{\sqrt{2} }
=\dfrac{\sqrt{2} }{2}