3. Find constants C1, C2, C3 such that ci Vi + C2V/2 + C3V3 = b where (10pts) Set up a 3 X 3 linear system and solve using Gauss-Jordan reduction. C = 3, 02 = 3, C3= -16. Find values of air, and r' so that the graph of the polynomial pH} = are + bx + r.- passes through the point (-141) and has a horizontal tangent at {2,-9)? {10 pts) Set up a 3 X 3 linear system and solve using Gauss-Jordan reduction. a = 1. b = \"-1. c: = *5