Let f(x)\displaystyle {f{{\left({x}\right)}}} be the function f(x)=xx+1−1\displaystyle {f{{\left({x}\right)}}}={\frac{{{x}}}{{{x}+{1}}}}-{1}. Find the following:

f(5)=\displaystyle {f{{\left({5}\right)}}}=  


f(−2)=\displaystyle {f{{\left(-{2}\right)}}}=  


f(12)\displaystyle {f{{\left({\frac{{{1}}}{{{2}}}}\right)}}}  


f(−14)\displaystyle {f{{\left(-{\frac{{{1}}}{{{4}}}}\right)}}}  

License