Find the Value of the Specified fiNite Sum $\sum _ { \mathrm { k } = 1 } ^ { \mathrm { n } } \mathrm { a } _ { \mathrm { k } } = 3$

question 36

Multiple Choice

Find the value of the specified finite sum.
-Given $\sum _ { \mathrm { k } = 1 } ^ { \mathrm { n } } \mathrm { a } _ { \mathrm { k } } = 3$ and $\sum _ { \mathrm { k } = 1 } ^ { \mathrm { n } } \mathrm { b } _ { \mathrm { k } } = 7$ , find $\sum _ { \mathrm { k } = 1 } ^ { \mathrm { n } } \left( \mathrm { a } _ { \mathrm { k } } - 2 \mathrm {~b} _ { \mathrm { k } } \right)$ .

• A) 11
• B) \(- 11\)
• C) 17
• D) \(- 17\)

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