$24\mathrm{.}2$ For xin$[0,),$ let $f_n(x)=\frac{x}{n}.($a$)$ Find $f(x)=\underset{?}{lim}{f}_n(x).($b$)$ Determine whether $f_{n}f$ uniformly on $0,1.($c$)$ Determine whether $f_{n}f$ uniformly on $[0,).24\mathrm{.}3$ Repeat Exercise $24\mathrm{.}2$ for $f_n(x)=\frac{1}{1+x^n}.24\mathrm{.}4$ Repeat Exercise $24\mathrm{.}2$ for $f_n(x)=\frac{x^n}{1+x^n}.24\mathrm{.}5$ Repeat Exercise $24\mathrm{.}2$ for $f_n(x)=\frac{x^n}{n+x^n}.$