Answer
$\sqrt 3+i$
Work Step by Step
$2$ cis $30^{\circ}$=$2(\cos30^{\circ}+i\sin30^{\circ})$
It is known that $\cos30^{\circ}=\frac{\sqrt 3}{2}$ and $\sin30^{\circ}=\frac{1}{2}$
Substituting these values in the expression and solving:
$2(\cos30^{\circ}+i\sin30^{\circ})=2(\frac{\sqrt 3}{2}+\frac{1}{2}i)=\sqrt 3+i$