Question

Use summation notation to write the series 49 + 54 + 59 +... for 14 terms.

Answer 1

@campbell_st and @ParthKohli i need ur help again

Answer 2

and explanations

Answer 3

Wait, I know this one. Can you wait for a sec? Have to refresh

Answer 4

@ParthKohli yeah sure

Answer 5

well find the common difference...

then make the adjustment...

looks like 5n + 44

Answer 6

\[\Large \sum_{a = 1}^{14th}\]

Answer 7

Replace 14th with 14th term..

Answer 8

parth you don't need 14th... its just 14.... the terminating value of n

Answer 9

Oh yes.

Answer 10

\[\sum_{n=1}^{14} (44+5n)\] or (49+59)

Answer 11

(49+5n) not 59