Problem: Sums of Powers of Two

The formula $\sum 2^x=2^x$ in antidifferences of some functions may seem strange. Apply this formula when using the fundamental theorem of the difference calculus to calculate $$\sum_{x=-5}^9 2^x.$$

Solutions: 1


Thank you to the contributors under CC BY-SA 4.0!

Github:
bookofproofs


References

Bibliography

  1. Miller, Kenneth S.: "An Introduction to the Calculus of Finite Differences And Difference Equations", Dover Publications, Inc, 1960