I just need help with this.

Question

Write the series in sigma notation.

1/4 + 1/2+ 3/4 + 1 + 5/4 + 3/2

5
A.) 1/4 sigma N
n=1

6
B.) 1/4 sigma n
n=1

5
C.)sigma n/n+3
n=1

6
D.)sigma n/n+3
n=1

Answer 1

using a denominator of 4, we have

14 + 2/4 + 3/4 + ... + 6/4 =

6
∑ n/4
n=1

looks like (B)