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Find the Sum k=25(13)k\sum _ { k = 2 } ^ { 5 } \left( \frac { 1 } { 3 } \right) ^ { k }

Question 32

Multiple Choice

Find the sum.
- k=25(13) k\sum _ { k = 2 } ^ { 5 } \left( \frac { 1 } { 3 } \right) ^ { k }


A) 1211024\frac { 121 } { 1024 }
B) 40243\frac { 40 } { 243 }
C) 121243\frac { 121 } { 243 }
D) 5128\frac { 5 } { 128 }

Correct Answer:

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