WebJun 20, 2024 · If a₁ = 4 and s₁₀ = 355 so a₁₀ = 67. An arithmetic sequence is a sequence in which the difference between two successive terms is always constant. Formula : aₙ = a + (n - 1)b. An Arithmetic Series is the sum of the terms of an arithmetic sequence. Formula : … WebThe squadron is a descendant organization of the World War I 107th Aero Squadron, established on 27 August 1917. It was reformed on 7 May 1926, as the 107th Observation …
SOLVED:In an AP: (i) given a=5, d=3, an=50, find n and Sn
WebApr 13, 2024 · The consequence of the massive increase in population in recent years is the enormous production of mainly industrial waste. The effort to minimize these waste products is, therefore, no longer sufficient. Biotechnologists, therefore, started looking for ways to not only reuse these waste products, but also to valorise them. This work focuses … WebFind a. Hard Solution Verified by Toppr We know that in an AP If first term is a 1=a, common difference is d then the n th term is a n=a+(n−1)d Sum of first n terms of this AP is S n=2n(a 1+a n)=2n(2a+(n−1)d) Now, (i) a 1=a=5 d=3 a n=50=a+(n−1)d ⇒50=5+(n−1)3 ⇒n=16 S n=2n(a 1+a n) ⇒S n= 216(5+50) ⇒S n=8×55=440 (ii) a 1=7 a 13=35 ⇒n=13 michael roizen what to eat when
In an AP (vii) Given a = 8, an = 62, Sn = 210, find n and d - teachoo
WebMar 22, 2024 · Given a = 8, an = 62, Sn = 210, Since there are n terms, 𝑙 = an = 62 We use the formula Sn = 𝒏/𝟐 (𝒂+𝒍) Putting a = 8, Sn = 210, 𝑙 = an = 62 210 = 𝑛/2 (8+62) 210 × 2=𝑛 × (70) 420 = n × 70 420/70=𝑛 6 = n n = 6 Now we need to find d We can use formula an = a + (n – 1) d Putting an = 62, a = 8, n = 6 62 = 8 + (6 – 1) × 𝑑 62 = 8 + 5d 62 – 8 = 5d 54 = … WebHere we compared two smartphones: the 5.8-inch Samsung Galaxy S9 (with Exynos 9 Octa 9810) that was released on February 25, 2024, against the Samsung Galaxy A10, which is powered by Exynos 7 Octa 7884 and came out 12 months after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices. Differences Review Web4.In an A.P if S10 = 35 and S9 = 28 find a10. Ans:- a10=Sn-Sn-1=S10-S10-1=S10-S9=35-28=7 5. Find the sum of first 25 odd natural numbers. 𝑛 Ans:- Sn = (a + an) ,The first term a = 1,The common difference d = 2 2 1250 n = 25 = = 625 2 6.Which term of the A.P 3,8,13,18,…….. is 78 . Ans:- a = 3, d = 8 – 3 = 5, an = 78, n =? 80 michael rokaitis modesto ca