MAXIMUM SUM...

the maximum sum of the series 20+1913+1823+18+...is...??
how 2 find it....???

2 Answers

206
Sayantan Hazra ·

From observations, this is an AP with negative common difference. So, for some n, there will be some nth term which becomes negative.

Hence, the max value will be sum of all the positive terms.

206
Sayantan Hazra ·

A negative value when added to a positive no......reduces the positive no.

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