Find the sum of the first 39 terms of the following series, to the nearest integer 7,15,23,...

Question

asked Mar 4, 2022 127k views

1 Answer

Nensi Kardani · Answer 1 · 2022-03-10T23:26:28+0000

Answer:

6201

Explanation:

formula for series in AP

where n is the nth term and a is first term and d is difference between two terms in series
$sum = (n)/(2) (2a \: + (n - 1)d)$