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Express the Sum Using Summation Notation $\sum _ { k = 1 } ^ { 4 } 2 ^ { k }$

Question 82

Multiple Choice

Express the sum using summation notation.
- $\sum _ { k = 1 } ^ { 4 } 2 ^ { k }$

A) 14
B) 30
C) 20
D) 18

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