onegirl
Find the sum 4 sigma notation sign n = 1 (n + 2/n + 3)



This Question is Closed

slaaibak
Best Response
You've already chosen the best response.
1
\[\sum_{n=1}^{4} {n+2 \over n+3}\]
Like that?

onegirl
Best Response
You've already chosen the best response.
0
yes

slaaibak
Best Response
You've already chosen the best response.
1
since it's only four terms, just evaluate it at each n:
\[{1 + 2 \over 1 + 3} + {2 + 2 \over 2 + 3} + {3 + 2 \over 3 + 3} + {4 + 2 \over 4 + 3} = {3 \over 4} + {4 \over 5} + {5 \over 6} + {6 \over 7}\]

onegirl
Best Response
You've already chosen the best response.
0
umm ok

onegirl
Best Response
You've already chosen the best response.
0
so what will it be?

slaaibak
Best Response
You've already chosen the best response.
1
Use your calculator.

onegirl
Best Response
You've already chosen the best response.
0
i did so i just add them all?

slaaibak
Best Response
You've already chosen the best response.
1
yeah

onegirl
Best Response
You've already chosen the best response.
0
ok thx