Show that a1, a2,…, an form an AP where an is defined as below.an = 9 – 5n. Also, find the sum of the first 15 terms in each case. Table of Contents<Select SpecificallyShow that a1, a2,…, an form an AP where an is defined as below.(ii) an = 9 – 5n. Also, find the sum of the first 15 terms in each case.Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment. Sign me up for the newsletter!

<Select SpecificallyShow that a1, a2,…, an form an AP where an is defined as below.(ii) an = 9 – 5n. Also, find the sum of the first 15 terms in each case.