Week 1 – My Arithmetic Sequence September 10, 2018 clarem2016 Sequence: 1, 5, 9, 13, 17 Difference: 4 Finding : = + (n – 1)(d) = 1 + (50 – 1)(4) = 1 + (49)(4) = 197 Finding the sum of the first 50 terms: = ( + ) = (1 + 197) = 25(198) = 4950 &n... Read More