WebOct 21, 2024 · Best answer AP = 3, 5, 7, 9, … Here, a = 3, d = 5 – 3 = 2 and Sn = 120 We know that, ⇒ 120 = n [2+n] ⇒ n2 + 2n – 120 = 0 ⇒ n2 + 12n – 10n – 120 = 0 ⇒ n (n + 12) - 10 (n + 12) = 0 ⇒ (n – 10) (n + 12) = 0 ⇒ n – 10 = 0 or n + 12 = 0 ⇒ n = 10 or n = -12 But number of terms can’t be negative. So, n = 10 Hence, for n = 10 the sum is 120 for the given AP.
Find the 9th term from the end of the A.P. 5, 9,13, …, 185.
WebHere first term = 5 Common difference = a2 - a1 = 9 -5 = 4 The A.p is 5 , 9 , 13 , ......., 181 , 185 We have find out the 9 th term from the end . Now , rearrange the A. P 185 , 181 , ......, 13 , 9 , 5 First term = a = 185 Common difference = d = a2 - a1 = 181 - 185 = - 4 ************************************************************** Web2 days ago · dublin--(business wire)--apr 13, 2024-- The "Medical Oxygen Gas Cylinders Market Analysis, by Product, by Technology, by End User, and by Region - Global Forecast to 2024-2033" report has been added to ResearchAndMarkets.com 's offering. does american airline charge for carry on
The number of terms common of two A.P’ s 5, 9, 13, ………, …
WebMar 28, 2024 · Transcript. Ex 5.3, 4 How many terms of the AP. 9, 17, 25 … must be taken to give a sum of 636? Given AP is 9, 17, 25, ….. Here, a = 9 d = 17 – 9 = 8 & Sum = Sn = 636 We need to find n We know that Sum = 𝑛/2 (2a + (n – 1) d) Putting a = 9, d = 8, Sn = 636 636 = 𝑛/ (2 ) (2 × 9 + (n – 1) × 8) 636 × 2 = n (18 + 8n – 8) 1272 ... WebOct 31, 2024 · Number of terms = 20 . The series is in AP, where 5 + 9 + 13 + 17 + ..... Formulas used: S n = n/2[2a + (n - 1)d] Calculation: n = 20 . a = 5. d = 9 - 5 = 4 . S 20 = 20/2 … Web1 day ago · Taylor, Julien, Correa HR in 9-run 1st, Twins top Yanks 11-2. NEW YORK (AP) — Michael A. Taylor, rookie Edouard Julien and Carlos Correa hit consecutive homers in a nine-run first inning, and the Minnesota Twins routed the New York Yankees 11-2 on Thursday night. Taylor homered twice and drove in four runs from the No. 9 spot in the batting ... does america make their own money