anyone can help

3. [110 Points] I DETAILS SCALCETB 4.3.056. Consider the function below. (If an answer does not exist, enter DNE.) f(x) = earctan(4x) (a) Find the vertical asymptote(s). (Enter your answers as a comma-separated list.) Find the horizontal asymptote(s). (Enter your answers as a comma-separated list.) v = E (b) Find the interval where the function is increasing. (Enter your answer using interval notation.) E Find the interval where the function is decreasing. (Enter your answer using interval notation.) E (c) Find the local maximum and minimum values. (d) Find the interval where the function is concave up. (Enter your answer using interval notation.) E Find the interval where the function is concave down. (Enter your answer using interval notation.) E Find the inection point. n = (E ) (e) Use the information from parts (a)-(d) to sketch the graph of 1'. local maximum value local minimum value 3"