Write the Series with Summation Notation $-2+3-4+5-6+7$ A) $\sum_{\mathrm{i}=1}^{6}(-1)^{\mathrm{i}} \cdot(\mathrm{i}+1)$ B) $\sum_{i=1}^{6}(-1)^{i+1} \cdot(i+1)$

Multiple Choice

Write the series with summation notation.
- $-2+3-4+5-6+7$

A) $\sum_{\mathrm{i}=1}^{6}(-1) ^{\mathrm{i}} \cdot(\mathrm{i}+1)$

B) $\sum_{i=1}^{6}(-1) ^{i+1} \cdot(i+1)$

C) $\sum_{i=1}^{6}(-1) ^{\mathrm{i}+1} \cdot(\mathrm{i}+2)$

D) $\sum_{i=1}^{6}(-1) ^{\mathrm{i}} \cdot(\mathrm{i}+2)$