Find the tangent line approximation $T$ to the graph of $f$ at the given point.

$f(x)=\frac{2}{x^2},(2,\frac{1}{2})$

$T(x)=$

Complete the table. $($Round your answers to four decimal places.$)$

$\backslash$table$[[x,1\mathrm{.}9,1\mathrm{.}99,2,2\mathrm{.}01,2\mathrm{.}1],[f(x),,,,,],[T(x),,,,,]]$