Answer:
Consecutive odd integers are 19 , 21 & 23
Step-by-step explanation:
Let the first 3 consecutive odd intergers be x , (x + 2) and (x + 4).
According to the question,


Eliminating 2x from both the sides,



So, the consecutive odd integers are = 19 , 21 & 23.
Answer:
the last one is the answer of it
The wording of this question is a bit confusing... You can't write a sequence in sigma notation, but rather a series or sum. I think the question is asking you to write the sum of the sequence,

which would be

in sigma notation.
To do this, notice that the denominator in each term is a power of 2, starting with
and ending with
. So in sigma notation, this series is

You only need to look at the y intercepts.
-11 - -7 is -4, but you can't have a negative distance so it's just 4