Question and Answers Forum

All Questions      Topic List

Arithmetic Questions

Previous in All Question      Next in All Question      

Previous in Arithmetic      Next in Arithmetic      

Question Number 66036 by aliesam last updated on 08/Aug/19

Answered by mr W last updated on 08/Aug/19

$$=2(1+2+3+...+\frac{n}{2})$$$$=2\times \frac{(1+\frac{n}{2})\frac{n}{2}}{2}$$$$=\frac{n(n+2)}{4}$$

Terms of Service

Privacy Policy

Contact: info@tinkutara.com