If sn 3n2 + n find the a.p
WebIf the Sum of N Terms of an A.P. is Sn = 3n2 + 5n. Write Its Common Difference. - Mathematics. ... If the sum of n terms of an A.P. is S n = 3n 2 + 5n. Write its common difference. Advertisement Remove all ads. Solution Show Solution. Here, we are given, `S_n = 3n^2 + 5n` Let us take the first term as a and the common difference as d. Now, … WebLet a be the first term and d be the common difference. We know that, sum of first n terms = S n = n 2 [2a + (n − 1)d] It is given that sum of the first n terms of an A.P. is 3n2 + 6n. ∴ First term = a = S 1 = 3(1) 2 + 6(1) = 9. Sum of first two terms = S 2 = 3(2) 2 + 6(2) = 24. ∴ Second term = S 2 − S 1 = 24 − 9 = 15. ∴ Common difference = d = Second term − First …
If sn 3n2 + n find the a.p
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WebIf Sn, the sum of first n terms of an AP is given by Sn = 3n2-4n, Find the nth term? Nihar Hirani 20.9K subscribers Subscribe 29K views 2 years ago CBSE class X Arithmetic … WebIf the sum of n terms of an A.P is S n=3n 2+5n Write its common difference. Medium Solution Verified by Toppr Correct option is A) Given that, Sum of A.P. is S n=3n 2+5n …
WebThe sum of first n terms of an AP is 3n 2−n. Find the 25 th term of this AP. Medium View solution > If the sum of first n terms of an A.P is given by S n=5n 2+3n, find the n th term of the A.P. Medium View solution > View more More From Chapter Sequences and series View chapter > Revise with Concepts Introduction to Arithmetic Progression - 2 Web`S_n = 3n^2 + 5n` Let us take the first term as a and the common difference as d. Now, as we know, `a_n = S_n - S_(n-1)` So, we get, `a_n = (3n^^^^2 + 5n) - [3(n-1)^2 + 5 (n-1)]` …
WebIf the sum of first n terms of an A.P is given by Sn = 3n^2 + 4n. Determine the A.P and the nth term ← Prev Question Next Question → +1 vote 41.5k views asked Sep 30, 2024 in Mathematics by Samantha (39.3k points) If the sum of first n terms of an A.P is given by Sn = 3n 2 + 4n. Determine the A.P and the n th term arithmetic progression cbse Web3 apr. 2024 · Doing this we will get the right answer. Complete step-by-step answer: It has been given that S n = 3 n 2 + 5 n and a k = 164. We know that the sum of the first term is the first term itself. So, we do S 1 = 3 ( 1) 2 + 5 ( 1) = 8. Therefore, a 1 = a = 8, Then the sum of the first two terms is S 2 = 3 ( 2) 2 + 5 ( 2) = 22.
WebIf S n, the sum of first n terms of an AP is given by Sn = 3n 2 - 4n, find the nth term. Advertisement Remove all ads Solution We have, S n = 3n 2 - 4n for n = 1 ⇒ S 1 = 3 ( 1) … tax form 15112 2022Web16 okt. 2024 · The sum of first n terms of an A.P. is given by Sn = 3n2 + 2n. Determine the A.P. and its 15th term. arithmetic progression class-10 1 Answer +1 vote answered Oct 16, 2024 by Ishti (46.5k points) selected Oct 31, 2024 by Anika01 Best answer Sn = 3n2 + 2n Taking n = 1, we get S1 = 3 (1)2 + 2 (1) ⇒ S1 = 3 + 2 ⇒ S1 = 5 ⇒ a1 = 5 Taking n = 2, … tax form 15109WebThe sum of the first n term of an A.P. is given by Sn = 3n^2 + 2n. Determine the A.P. and its 15^th term. Question The sum of the first n term of an A.P. is given by S n=3n 2+2n. Determine the A.P. and its 15 th term. Medium Solution Verified by Toppr S n=3n 2+2n Taking n=1, we get S 1=3(1) 2+2(1) ⇒S 1=3+2 ⇒S 1=5 ⇒a 1=5 Taking n=2, we get the china dishWebIn an AP, if S n=3n 2+5n and a k=164, find the value of k. Medium Solution Verified by Toppr Correct option is A) S n=3n 2+5n ∴S 1=a=3+5=8 and S 2=a 1+a 2=3×2 2+5×2=22 ⇒a+a+d=22⇒2a+d=22 ⇒d=22−2a=22−16=6 Now a k=164 ⇒a+(k−1)d=164 ⇒8+(k−1)6=164 ⇒(k−1)6=156 ⇒k−1=26⇒k=27 Was this answer helpful? 0 0 Similar questions tax form 14446WebIn an AP, if Sn = 3n2 + 5n and ak = 164, find the value of k. - YouTube. #class10#arithmeticprogressionsIn an AP, if Sn = 3n2 + 5n and ak = 164, find the value … tax form 15108WebIf the sum of n terms of an A.P. is 2n+3n 2, find the r th term. Medium Solution Verified by Toppr ⇒S 1=2(1)+3(1) 2=5 S n= 2n{2a+(n−1)d} S n= 2n{a+a+(n−1)d} S n= 2n{a+a n} … tax form 15103Webif an A.P sn=3n 2+5nfindA.P? Medium Solution Verified by Toppr Solution :- Given S n=3n 2+5n S 1=a 1=3(1) 2+5(1)=3+5=8 S 2=a 1+a 2=3(2) 2+5(2)=3(4)+10=22 ⇒8+a 2=22 ⇒a … tax form 150.1