APGP Question #1

This is a question from A-level 1999 Paper 1. A very simple question that tests you if you know your stuffs. 🙂

The r^{th} term of a series is 3^{r-1} + 2r. Find the sum of the first n terms.

Ans: \frac{1}{2} (3^{n}-1)+n(n+1)

Leave a Comment

twelve − 6 =

Contact Us

CONTACT US We would love to hear from you. Contact us, or simply hit our personal page for more contact information

Not readable? Change text. captcha txt

Start typing and press Enter to search