Three point$-$like charges are placed at the corners of an equilateral triangle as shown in the figure. Each side of the

triangle has a length of $20\mathrm{.}0cm,$ and the point $(A)$ is located half way between $q_1$ and $q_2$ along the side. Find the

magnitude of the electric field at point $(A).$ Let $q_1=+1\mathrm{.}50C,q_2=+3\mathrm{.}80C,$ and $q_3=-4\mathrm{.}80C.$

$6203100\frac{N}{C}$