Answered

Welcome to Westonci.ca, the Q&A platform where your questions are met with detailed answers from experienced experts. Discover the answers you need from a community of experts ready to help you with their knowledge and experience in various fields. Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals.

what is the sum of the first 30 odd numbers? How to calculate it without having to add all of them.

Sagot :

Ryan2
See that odd number are in a Aritmetic progression with a1 = 1 and r = 2

30th number of sequence is given by:

[tex]a_{30}=a_1+29r\\ \\ a_{30}=1+29*2\\ \\ a_{30}=59[/tex]

Now you can calculate the sun by:

[tex]S_{30}=\frac{30(1+59)}{2}=\frac{30*60}{2}=900[/tex]
Thank you for visiting our platform. We hope you found the answers you were looking for. Come back anytime you need more information. Thank you for visiting. Our goal is to provide the most accurate answers for all your informational needs. Come back soon. Get the answers you need at Westonci.ca. Stay informed with our latest expert advice.