WebAnswer (1 of 8): Given that the sum of n terms of an arithmetic sequence Sₙ = 4n² + 3n So, nᵗʰ term of the sequence Tₙ = Sₙ — Sₙ_₁ = (4n² + 3n ... Web6 May 2024 · Question 1- Find the sum of first 30 terms of AP: -30, 24, -18,/.. Solution- a= -30, d= 6 = 15 [-60 + 29 (6)] = 15 [-60+174] = 15 [114] = 1710. OR. Question 1- If an AP is Sn = …
In an AP if Sn = n(4n + 1) then Find the AP - YouTube
Web16 Mar 2024 · Answer: d = -2 Step-by-step explanation: Because the sum of first n terms of any AP is in the form (d/2)n² + (a - d/2)n, where d is the common difference and a is the first term. So that the coefficient of n² is half of the common difference. Here in S_n = 4n - n², the coefficient of n² is -1, so that half of common difference is -1. Web14 May 2024 · In an AP, if Sn = n (4n + 1), find the AP. Q.48. In an AP, if S n = 3n 2 + 5n and a k = 164, find the value of k. Q.49. If Sn denotes the sum of first n terms of an AP, prove that S 12 = 3 (S 8 –S 4) Q.50. Find the sum of first 17 terms of an AP whose 4th and 9th terms are –15 and –30 respectively. Q.51. astra daihatsu bekasi sudirman
In an AP, if Sn = n (4n + 1), find the AP - YouTube
WebIn case T n = n k, your examples corresponding to k=1,2, the Newton-Girard formulas provide a recursive expression for S n in terms of the elementary symmetric polynomials. These … Web1 day ago · Similarly, the elements of group 12 all have an ns 2 (n − 1)d 10 valence electron configuration, so they lose two electrons to form M 2+ ions with an (n − 1)d 10 electron … Web^ r . c a l v i n McKi n n e y As the result of injuries received a week before, R. Calvin McKinney, a well known resident of near T aney town, died on Thursday morning. Mr. McKinney, who was in his eighty eighth year, sustained a brok en collarbone on Thursday of last week. He had been visiting his son, John McKinney, on the home farm and ... astra daihatsu bsd abc ulasan