Step $2$

Moving closer to $0,$ when $x=0\mathrm{.}01,$ rounded to six decimal places, $\frac{tan(0\mathrm{.}04)}{tan(0\mathrm{.}05)}=$

$0\mathrm{.}79976$

When $x=-0\mathrm{.}01,$ rounded to six decimal places, $\frac{tan(-0\mathrm{.}04)}{tan(-0\mathrm{.}05)}=\mathrm{.}799760$

Step $3$

Finally, when $x=0\mathrm{.}001,$ rounded to six decimal places, the function equals When $x=-0\mathrm{.}001,$ rounded to six decimal places, the function equals Enter a number.