To rationalize an expression that contains a binomial we use the :

14+3\displaystyle \frac{{1}}{{{4}+\sqrt{{{3}}}}}

The conjugate required to rationalize the denominator is   .

Rationalize the denominator: 14+3=\displaystyle \frac{{1}}{{{4}+\sqrt{{{3}}}}}=  
[ To enter ab\displaystyle {a}\sqrt{{{b}}} type the following: a sqrt(b) ]