$13-$Non$-$source, unit vector

The electric field on the side containing the origin point from the regions separated by the plane $$n $=0\mathrm{.}5(ay+\sqrt[\phantom{2}]{3}$hat$(a{)}_2)$ is $.E=4x+ay+\sqrt[\phantom{2}]{3}$z and $=4.$ Knowing that the other side is empty space, find $Et$ for this region.

The electric field is $\frac{?}{\text{b}\text{a}\text{r}}(E)=4$hat$(a{)}_x+$hat$(a{)}_y+\sqrt[\phantom{2}]{3}$widehat$(a{)}_z$ and $=4$ on the side containing the point of origin from the sourcefree regions separated by the plane of the unit vector hat$(a{)}_n=0\mathrm{.}5(hat(a{)}_y+\sqrt[\phantom{2}]{3}$hat$(a{)}_z).$ Find $\frac{?}{\text{b}\text{a}\text{r}}(E{)}_t$ for this region by knowing the other side is free$-$space.

a$)\frac{?}{\text{b}\text{a}\text{r}}(E{)}_t=4$hat$(a{)}_x$

b$)$Et $=$ ax $+$ay $+2az$

c$)$ Eat $=$x

d$)$ And $=$ ax$/4$

e$)$Et $=$ ay $+2$z