Ratio Test for Finding the 1(circled part) - Understanding the Process

Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
1 reply · 2K views
foo9008
Messages
676
Reaction score
4
Member warned about posting with no effort shown

Homework Statement


where does the 1(circled part) come from ? is it a mistake ?

Homework Equations

The Attempt at a Solution

 

Attachments

  • DSC_0498.JPG
    DSC_0498.JPG
    45.1 KB · Views: 417
Physics news on Phys.org
Try look closer. There is a difference in the second expression apart from the 1.