Math, asked by sivanigontu4880, 1 year ago

The first term of an arithmetic progression is 5 and the 16th term is 45. find the sum of first 16 terms of this series.

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Answered by 5U8H0J1T

0

to calculate sum of nth term I use na+(d*n*(n+1))/2......
so answer is 400.......

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