An = 5n 3 July 8, 2019 16 32 64 128 An 5n 3 An 5n 3 first five terms An 3 5n 2 n n 2 An 5n 2 3n An 4 5n 3 If an 5n 3 find a7 If an 5n 3 find the common difference If an 5n 3 then find a3
