3 years ago

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

Mathematics

1 answer:

sertanlavr [38]3 years ago

4 0

Answer:

6201

Step-by-step 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 $sum = \frac{n}{2} (2a \: + (n - 1)d)$

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