URGENT PLEASE NEED HELP. DO EVERY QUESTION PLEASE AS THEY BELONG TO THE SAME EXCERCISE. PLEASE DO EVERY ONE AS THEY WILL HELP ME STUDY FOR MY EXAM

Q4 8 Points Suppose f is a differentiable function such that (fog) (x) = x and f'(x) = 1 + [f(x)]2. dg(x) 1 Show that dx 1 +22 Please select file ( s ) Select file(s) Save AnswerQ3 8 Points Sand is poured into a conical pile with the height of the pile equaling the diameter of the pile. If the sand is poured at a constant rate of 5 m / s, at what rate is the height of the pile increasing when the height is 2 meters? Please select file(s) Select file(s) Save