Question

How do you write the series `7+10+13+16` using sigma notation?

Answer 1

`Sigma_(n=0)^3 (7+3n)`

Explanation:

`7+10+13+16`

=`color(white)("XXxX")(7+3xx0)`
`color(white)("XXX")+(7+3xx1)`
`color(white)("XXX")+(7+3xx2)`
`color(white)("XXX")+(7+3xx3)`