Question

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

Answer 1

\[\sum_{n=1}^{4} {n+2 \over n+3}\]

Like that?

Answer 2

yes

Answer 3

since it's only four terms, just evaluate it at each n:

\[{1 + 2 \over 1 + 3} + {2 + 2 \over 2 + 3} + {3 + 2 \over 3 + 3} + {4 + 2 \over 4 + 3} = {3 \over 4} + {4 \over 5} + {5 \over 6} + {6 \over 7}\]

Answer 4

umm ok

Answer 5

so what will it be?

Answer 6

Use your calculator.

Answer 7

i did so i just add them all?

Answer 8

yeah

Answer 9

ok thx