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Find the Indicated Sum i=14(12)i\sum _ { i = 1 } ^ { 4 } \left( - \frac { 1 } { 2 } \right) ^ { i }

Question 15

Multiple Choice

Find the indicated sum.
- i=14(12) i\sum _ { i = 1 } ^ { 4 } \left( - \frac { 1 } { 2 } \right) ^ { i }


A) 116- \frac { 1 } { 16 }
B) 516\frac { 5 } { 16 }
C) 1516\frac { 15 } { 16 }
D) 516- \frac { 5 } { 16 }

Correct Answer:

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