Solved

Use Summation Notation
- a+ar+ar2++ar14a + a r + a r ^ { 2 } + \ldots + a r ^ { 14 }

Question 21

Multiple Choice

Use Summation Notation
- a+ar+ar2++ar14a + a r + a r ^ { 2 } + \ldots + a r ^ { 14 }


A) k=014ark\sum _ { \mathrm { k } = 0 } ^ { 14 } a \mathrm { r } ^ { \mathrm { k } }
B) k=115ark\sum _ { \mathrm { k } = 1 } ^ { 15 } a \mathrm { r } ^ { \mathrm { k } }
C) k=014(ar) k\sum _ { \mathrm { k } = 0 } ^ { 14 } ( \mathrm { ar } ) ^ { \mathrm { k } }
D) k=114ark\sum _ { k = 1 } ^ { 14 } a r ^ { k }

Correct Answer:

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