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Find the Partial Sum an=9n\mathrm { a } _ { \mathrm { n } } = - 9 \mathrm { n }

Question 36

Multiple Choice

Find the partial sum.
-Find the sum of the first five terms of the sequence whose general terms is an=9n\mathrm { a } _ { \mathrm { n } } = - 9 \mathrm { n } .


A) 27- 27
B) 135- 135
C) 90- 90
D) 135

Correct Answer:

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