Answered

Discover the answers you need at Westonci.ca, where experts provide clear and concise information on various topics. Explore thousands of questions and answers from a knowledgeable community of experts ready to help you find solutions. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals.

calculate s7 for the series 3,9,27

Sagot :

Solution:

the sumatory of a geometric sequence is given by the following equation:

[tex]S_n=\frac{a(r^n-1)}{r-1}[/tex]

In this case, we have a geometric sequence with first term 3, common ratio 3, and the number of terms 7, thus, we get:

[tex]S_7=\frac{a(r^n-1)}{r-1}=\frac{3(3^7-1)}{3-1}=3279[/tex]

So that, we can conclude that the correct answer is:

[tex]3279[/tex]

We hope you found what you were looking for. Feel free to revisit us for more answers and updated information. We appreciate your visit. Our platform is always here to offer accurate and reliable answers. Return anytime. Thank you for using Westonci.ca. Come back for more in-depth answers to all your queries.