Math, asked by abhilashsadan55, 1 month ago

in the arithametic sequence 6,11,16,21 find the sum of 15 term

Answers

Answered by AtiyaBanu

0

Step-by-step explanation:

Sn=n/2 (2a+(n-1)d)

s15=15/2 (2 (6)+(15-1)5)

s15=15/2 (12+14 (5))

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