MAT1581-2016-6-E-1 MAT1581-2016-10-E-1 MAT1581-2017-6-E-1 MAT1581-2017-6-E-2 MAT1581-2017-10-E-1 ViewMarkedAssignment4 001_2017_4_b 002_2017_4_b 101_2018_3_b