12.2 Arithmetic Series

Find the sum of the arithmetic series
 $\sum_{i=1}^{10}\left(1+3i\right)$  

• 172

• 31

• 175

• 170

Find the sum of the arithmetic series
 $\sum_{i=1}^{22}\left(-9+11i\right)$  

• 233

• 2585

• 2580

• 230

 $\sum_{i=1}^{18}\left(14-6i\right)$  Find the sum of the arithmetic series

• -774

• -772

• -94

• -90

 Find the sum of the arithmetic series:
 $-1+4+9+...+34$  

• 134

• 120

• 130

• 132

Find the sum of the arithmetic series

 $\sum_{i=1}^8\left(-3-2i\right)$  

• -94

• -96

• -19

• -16