$\left(\frac{x+3}{(x+1)}\right)^{\prime}$
\(\boxed{\frac{-2}{(x+1)^2}}\)
Step 1 :Given function: \(\frac{x+3}{x+1}\)
Step 2 :Find the derivative using the quotient rule: \(\frac{f'(x)g(x) - f(x)g'(x)}{(g(x))^2}\)
Step 3 :Compute the derivatives: \(f'(x) = 1\) and \(g'(x) = 1\)
Step 4 :Apply the quotient rule: \(\frac{1(x+1) - (x+3)(1)}{(x+1)^2}\)
Step 5 :Simplify the expression: \(\frac{-2}{(x+1)^2}\)
Step 6 :\(\boxed{\frac{-2}{(x+1)^2}}\)