Please solve all the question with step by step explanations

1. Find open intervals on which, an) = V3532+m+1 is (a) increasing, (b) decreasing, (c) concave up, ((1) concave down. Also nd :1: coordinates of all inection points. 2. Locate the critical points of f(x) = x'(x - 1) COIN Also identify which critical points correspond to stationary points. 3. Find the relative extrema (maxima/minima) of 7-2 f (x) = x4 + 16