The function r(n) = 5n² + 1 represents the value of the nth term in a sequence. What is the sum of the 1st and 3rd terms of the sequence?

asked Nov 16, 2022 127k views

4 votes

The function r(n) = 5n² + 1 represents the value of the nth term in a sequence.

What is the sum of the 1st and 3rd terms of the sequence?

4.0k points

Please log in or register to add a comment.

3 votes

Explanation:

a_n=5n²+1

➜a_1=5(1)²+1

➜5×1+1

➜5+1

➜a_3=5(3)²+1

➜5×9+1

➜45+1

Runhani answered Nov 20, 2022

4.4k points

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

4.7m questions

6.2m answers