Enter each answer as a whole number or a fraction, or DNE for Does Not Exist or undefined.

$\displaystyle \lim_{{{x}\to{4}^{+}}}$ $\displaystyle \frac{{{f{{\left({x}\right)}}}-{2}}}{{f{{\left({x}+{4}\right)}}}}=$

$\displaystyle \lim_{{{x}\to{1}^{{-}}}}$ $\displaystyle {f{{\left({f{{\left({x}\right)}}}+{2}\right)}}}=$

$\displaystyle \lim_{{{h}\to{0}}}$ $\displaystyle \frac{{{f{{\left({6}+{h}\right)}}}-{f{{\left({6}\right)}}}}}{{h}}=$