How do you calculate ra$=1\mathrm{.}1180$ and ra$=0\mathrm{.}3929,1\mathrm{.}1382$Calculate ra ${?}^{\text{'}}p={}_p,{}_a$:${}_p,$

$1=\frac{1-r_a^2}{[1+(0\mathrm{.}25)(3\mathrm{.}16)-(3\mathrm{.}16{)}^2{r}_{a^2}^2](1-r_a^2)-(0\mathrm{.}25)(3\mathrm{.}16{)}^2}-\sqrt[\phantom{2}]{r_a}=1\mathrm{.}1180$

Similary when $\frac{x^{\text{'}}V}{E_0}=-1,$ calenitate $r_a$

$\frac{1-r_a^2}{-1}=[1+(0\mathrm{.}25)(3\mathrm{.}16)-(3\mathrm{.}16{)}^2{r}_a^2](1-r_a^2)-(0\mathrm{.}25)(3\mathrm{.}16{)}^2$

Bundwidth: