WebMay 5, 2024 · Solution: We have, a = 50, d=-4 and S n = 0 We know that S n = n/2 [2a+ (n−1)d] 0 = n/2 [2.50+ (n−1) (-4)] 0 = n/2 [100+ (-4n+4)] 0 = n/2 (104-4n) 4n = 104 n = 104/4 n = 26 Related questions 0 votes 1 answer If an AP is Sn = n (4n+1), then find the AP asked May 5, 2024 in Class X Maths by kabita (13.8k points) class-10 0 votes 1 answer WebMar 29, 2024 · And, the formula to calculate sum of first n terms of an AP, that is S n, is given by, S n = n 2 ( 2 a + ( n − 1) d) ⋯ ⋯ ( i i) Now, In the given question we have, a n = 4, d …
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WebOct 25, 2024 · In an AP: (i) given a = 5, d = 3, an = 50, find n and Sn. (ii) given a = 7, a13 = 35, find d and S13. (iii) given a12 = 37, d = 3, find a and S12. (iv) given a3 = 15, S10 = 125, find d and a10. (v) given d = 5, S9 = 75, find a and a9 (vi) given a = 2, d = 8, Sn = 90, find n and an (vii) given a = 8, an = 62, Sn = 210, find n and d. (viii) given ... WebMar 28, 2024 · Given an = 4, d = 2, Sn = –14 Since there are n terms, 𝑙 = an = 4 We use the formula Sn = 𝒏/𝟐 (𝒂+𝒍) Putting Sn = −14, 𝑙 = an = 4 –14 = 𝑛/2 (𝑎+4) –14 × 2 =𝑛 (𝑎+4) –28 = n (a + 4) …
WebAug 27, 2024 · The nth term of an Arithmetic progression is 4 . Common difference of the Arithmetic progression is 2 . The sum of the n terms of the Arithmetic progression is - 14 . This implies ; Using the formula , to find the nth term of the AP ! = a + ( n - 1 ) d }= 4 d = 2 4 = a + ( n - 1 )24 = a + 2n - 2 4 + 2 = a +2n 6 = a + 2n a + 2n = 6 equation−1 WebFor an AP, S n = (n/2) [2a+ (n-1)d] Putting n = n-1 in above equation, l is the last term. It is also denoted by a n. The result obtained is: S n -S n-1 = a n So, 441-356 = a n a n = 85 = 13+ (n-1)d Since d=n, n (n-1) = 72 ⇒n 2 – n – 72= 0 Solving by factorization method, n 2 -9n+8n-72 = 0 (n-9) (n+8)=0 So, n= 9 or -8
Web- YouTube #arithematic_progressions given an AP. a = 4, d = 2, Sn = –14, find n and a. Ashokanan eduhub 184 subscribers Subscribe 0 Share Save No views 1 minute ago... WebIn an AP, an=4, d=2, Sn= -14. Find n and a. Deleted Syllabus of class X Mathematics (2024-2024) Due to on going Corona Virus outbreak Raj Medical store has started selling masks of descent quality.
WebJun 24, 2024 · Chapter-5 ARITHMETIC PROGRESSION Exercise-5.3 Question-3In an AP: (viii) given an = 4, d = 2, Sn = –14, find n and a
WebNov 6, 2013 · In an AP, an = 4, d = 2, Sn = -14 find n and a - Maths - Arithmetic Progressions. NCERT Solutions; Board Paper Solutions; Ask & Answer ... (viii) Given that, a n = 4, d = 2, S n = −14. a n = a + (n − 1)d. 4 = a + (n − 1)2. 4 = a + 2n − 2. a + 2n = 6. a = 6 − 2n (i) −28 = n (a + 4) −28 = n (6 − 2n + 4) {From equation (i)} −28 ... the pet pad lloydminsterWebAug 7, 2015 · (iv) given a3 = 15, S10 = 125, find d and a10. (v) given d = 5, S9 = 75, find a and a9 (vi) given a = 2, d = 8, Sn = 90, find n and an (vii) given a = 8, an = 62, Sn = 210, find n and d. (viii) given an = 4, d = 2, Sn = –14, find n and a. (ix) given a = 3, n = 8, S = 192, find d. (x) given l = 28, S = 144, and there are total 9 terms. Find a ... the pet pampererWebNov 28, 2024 · An arithmetic progression (AP) is a sequence of numbers in which the difference between the consecutive terms is constant. If a is the first term, d is the common difference, and s_n is the... the pet pad puppiesWebMar 19, 2024 · In an AP: (i) given a = 8, an = 62. Sn = 210, find ‘n’ and ‘d’. (ii) given an = 4, d = 2, Sn = -14. find ‘n’ and a. (iii) given a = 3, n = 8, S = 192, find ‘d’. (iv) given L = 28, S = 144 and there are total 9 terms. Find ‘a’. arithmetic progression class-10 1 Answer +1 vote answered Mar 19, 2024 by Sunil01 (67.7k points) sicily blank mapthe pet of sakurasouWebMar 23, 2024 · Let's say that the first term of the Arithmetic Progression is "a" and the common difference is d = 2. It is given that the nth term is an = 4. Using the formula for … sicily blairsville gaWebMar 23, 2024 · In an AP:(viii) given an = 4, d = 2, Sn = –14, find n ... In an AP given an=4 d=2 sn=-14 find n and a Class 10 Maths Chapter 5 Exercise 5.3 Question 3 ka 8Q3. the pet orphanage logan oh