WebAug 26, 2024 · Best answer Sn = n (4n + 1) Sn - 1 = (n - 1) [ 4 (n - 1) - 1] = (n - 1) [ 4n - 5] Sn - Sn - 1 = n (4n + 1) - (n - 1) (4n - 5) (a1 + a2 + a3 + - - - + an - 1 + an) - (a1 + a2 + … WebTo find the sum for arithmetic sequence, sn= n(n+1)/2, it is shown (n+1)/2, can be replaced with the average of nth term and first term. ... a_n = a_0 * c^n + d * (c^n - 1) / (c - 1). Notice that if c = 1, then you have just a regular arithmetic sequence. Comment Button navigates to signup page (1 vote) Upvote. Button opens signup modal. Downvote.
In an AP, if Sn = n (4n + 1), then find the AP. - Sarthaks
WebSolution: An arithmetic progression (AP) is a sequence where the two consecutive terms have the same common difference. It is obtained by adding the same fixed number to its previous term. n - 2, 4n - 1, 5n + 2 are in AP. 3n + 1 = 5n + 2 - … czech republic embassy in bangladesh
If Sn the sum of first n terms of an AP is given by Sn = 3n2-4n. Find ...
WebApr 10, 2024 · The Indian Navy has released the official notification 1400 vacancies for the Indian Navy SSR Agniveer Exam 2024. The selection process includes a Computer Based Test, Written Exam & Physical Fitness Test (PFT), and last stage of Medical Examination. Candidates applying for the exam must check the Indian Navy SSR Agniveer Eligibility … WebLaw_Enforcem-_New_York_N.Y.d5ôÈd5ôÈBOOKMOBI£R à x ó (€ 2Z ;Ü E= NŠ X ad jÆ tI }î ‡_ Ó ™Ê £ "«â$µƒ&¾Í(Çã*Ñ7,Ú\.ã-0ìq2ö 4ÿ96 \8 M: #K> - @ 5®B >ÌD GÔF Q H Z¯J dGL nfN wvP €´R ‰€T ’kV ›_X Ÿ*Z Ÿ,\ ^ ì` ¡ b … d ‹0f ’œh š€j ¢°l ¥Ðn ©Lp ¶¸r ÄÔt Òðv à\x lz 4 4~ ND€ aì‚ e „ y8† “˜ˆ š Š ¼ØŒ Ä(Ž Ëd ÓŒ ... WebIn an AP, if s n =n (4n + 1), then find the AP. Solution: We know that, the n th term of an AP is Hence, the required AP is 5,13, 21,… Question 25: In an AP, if s n = 3n 2 + 5n and a k = 164, then find the value of k. Solution: Question 26: If s n denotes the sum of first n terms of an AP, then prove that s 12 =3(s 8-s 4) Solution: Question 27: czech republic embassy in addis ababa