Question

How do you find the sum of `Sigma 2^i` where i is [1,4]?

Answer 1

This is written as:

`sum_(i=1)^4 2^i`

Which is simply all `4` parts added up, from when `i=1` up to when `i=4`:

`=2^1+2^2+2^3+2^4`

`=2+4+8+16`

`=30`