Question

What is the 5th partial sum of the sum of negative 3 plus 5 for n equals 1 to infinity ?

Answer 1

\[ \sum_{n=1}^{\infty} -3+5n\]

Answer 2

\[-3+5-3+10-3+15-3+20-3+25\]

Answer 3

oh okay so when they say the '5th partial sum' they mean to plug in the 5?

Answer 4

probably a slicker way to do it, but that works for a small number like 5

Answer 5

fifth partial sum means literally
\[\sum_{n=1}^5a_n\]

Answer 6

ohhhhhh okay I see what you mean thank you soo much :)

Answer 7

yw