need help please

. d_y - , _ 351 2 _ 1. Flnd dx for each of the following. (a) v {x4+1} (b)v ln(x2 + 5) (c) if? +\\/ -7 (12 pts) 2. Find the equation of the tangent line to the curve: y + 3x2 = 2 +2sir3y3 at the point (1 , 1) (Bots) 3. Find the absolute maximum and absolute minimum values of f(x) = x3 -12:( +1 on the interval [1 , 3] (8 pts) 4. A particle moves according to the law of motion s(t) = t3 - t2 -6t (a) Find the velocity of the particle at t=2 (b) Find the acceleration of the particle at t=2 (8 pts