Infinite Geometric Series

Hello,

I need this done asap. Questions 1-10.

I ask for it to be comepleted using methods that are for the most part easy to understand so i can use it to study for the future.
im not really sure if this is helpful but it has to be done using this general format (assuming there are other formats)
https://youtu.be/pFcJZnxqzNc

Thank you for viewing this question.
And double thank you if you take on this question haha. 

  • In the youtube video the sum starts at n=0, in your exercise sheet sometimes the term t_1 is given and from the context I would assume that the sum should start with this term. Can you verify if your convention is that your sum starts with the term t_0 or t_1?

  • im pretty sure its t1

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