Arithmetic and Geometric Series Practice

Determine the sum of the arithmetic series: -11 - 15 - 19 - ... - 35

• S_n = 115

• S_n = -161

• S_n = 138

• S_n = -46

Determine the sum of the arithmetic series: 11 + 21 + 31 + ... + 71

• S_n = 246

• S_n = 287

• S_n = 205

• S_n = 82

Determine the sum of the arithmetic series: 14 + 23 + 32 + ... + 59

• S_n = 146

• S_n = 219

• S_n = 292

• S_n = 73

Determine the sum of the arithmetic series: -7 - 5 - 3 - ... + 1

• S_n = 20

• S_n = -15

• S_n = -18

• S_n = -6

Determine the sum of the arithmetic series: 40 + 50 + 60 + ... + 80

• S_n = 240

• S_n = 300

• S_n = 360

• S_n = 120

Determine the sum of the arithmetic series: -35 - 45 - 55 - ... - 75

• S_n = 165

• S_n = -275

• S_n = -605

• S_n = -110

Find the sum of the first 9 terms of the geometric series: 2 + 10 + 50 + ...

• S_n = -3,906,253

• S_n = 976,562

• S_n = 131,072

• S_n = 234

Find the sum of the first 7 terms of the geometric series: -1 + 6 - 36 + ...

• S_n = -279,931

• S_n = -39,991

• S_n = -117,649

• S_n = -148

Find the sum of the first 6 terms of the geometric series: 4 - 16 + 64 - ...

• S_n = -16,376

• S_n = -3,276

• S_n = 12,500

• S_n = 204

Find the sum of the first 9 terms of the geometric series: -2 - 6 - 18 - ...

• S_n = 39,361

• S_n = -19,682

• S_n = -512

• S_n = -90