$$f:\mathbb{R}\to\mathbb{R}, \,\ f(x)=x^2+2x+1=(x+1)^2$$ ve
$$g:\mathbb{R}\to\mathbb{R}, \,\ g(x)=x+1$$ olmak üzere
$$\left(\frac{f}{g}\right):\mathbb{R}\setminus\{-1\}\to\mathbb{R}, \,\ \left(\frac{f}{g}\right)(x):=\frac{f(x)}{g(x)}=\frac{(x+1)^2}{x+1}=x+1$$