$w_1=5[\cos(15^\circ)+i\sin(15^\circ)]$ $w_2=3[\cos(45^\circ)+i\sin(45^\circ)]$ **Express the product of $w_1$ and $w_2$ in polar form.** *The angle should be given in degrees*. $w_1\cdot w_2= $ [[☃ expression 1]]