12345123456789g(x)x-valuesy-values 1234512345h(x)x-valuesy-values

If f(x)=g(x)h(x)\displaystyle {f{{\left({x}\right)}}}=\frac{{g{{\left({x}\right)}}}}{{{h}{\left({x}\right)}}}, then

f(4)\displaystyle {f}'{\left({4}\right)} =