Express the Sum Using Summation Notation $$\frac { 1 } { w } + \frac { s } { 2 w } + \frac { s ^ { 2 } } { 3 w } + \ldots + \frac { s ^ { n - 1 } } { n w }$$

question 235

Multiple Choice

Express the sum using summation notation.
- $$\frac { 1 } { w } + \frac { s } { 2 w } + \frac { s ^ { 2 } } { 3 w } + \ldots + \frac { s ^ { n - 1 } } { n w }$$

• A) \(\sum _ { \mathrm { k } = 1 } ^ { \mathrm { n } } \frac { \mathrm { s } ^ { \mathrm { k } } } { \mathrm { kw } }\)
• B) \(\sum _ { k = 1 } ^ { n } \frac { s ^ { k - 1 } } { k w }\)
• C) \(\sum _ { k = 0 } ^ { n } \frac { < b > k } { k w }\)
• D) \(\sum _ { \mathrm { k } = 0 } ^ { \mathrm { n } } \frac { \mathrm { s } ^ { \mathrm { k } - 1 } } { \mathrm { kw } }\)

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