Answer
$$\left(3\cos \left(40^{\circ \:}\right),\:3\sin \left(40^{\circ \:}\right)\right)$$
Work Step by Step
Converting the point from polar coordinates to Cartesian coordinates, we find:
$$x=3\cos \left(40^{\circ \:}\right) \\ y=3\sin \left(40^{\circ \:}\right) \\ \left(3\cos \left(40^{\circ \:}\right),\:3\sin \left(40^{\circ \:}\right)\right)$$
