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. Web27 okt. 2012 · Answer : Given : Sn=3n2+n To find : the AP S1 = 3 +2 = 5 Therefore t1 = 5 S2 = 3*22 +2*2 = 12 +4 = 16 d = 16 - 5 = 11 So AP is 5, 11 , 17 , 23, ... Answer tn = a + …
In an AP, if Sn = n(4n + 1), find the AP. - Mathematics
Web16 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, … Web5 feb. 2024 · If the sum of n terms of an A.P. is given by Sn = 3n + 2n 2, then the common difference of the A.P. is (A) 3 (B) 2 (C) 6 (D) 4 asked Sep 7, 2024 in Arithmetic … エスプリーク アイシャドウ 粉飛び
If So, the sum of first n terms of an AP is given by Sn = 3n2-4n, …
WebThe sum of n term of an A.P. is 3n 2+5n. Find the A.P. Hence, find its 16 th term. Medium Solution Verified by Toppr S n=3n 2+5n Taking n=1, we get S 1=3(1) 2+5(1) ⇒S 1=3+5 ⇒S 1=8 ⇒a 1=8 Taking n=2, we get S 2=3(2) 2+5(2) ⇒S 2=12+10 ⇒S 2=22 ∴a 2=S 2−S 1=22−8=14 Taking n=3, we get S 3=3(3) 2+5(3) ⇒S 3=27+15 ⇒S 3=42 ∴a 3=S 3−S … 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, … WebIf Sn.., the sum of first n terms of an AP is given by Sn =3n2- 4n, find the nth term. CBSE English Medium Class 10. Question Papers 939. Textbook Solutions 33590. MCQ Online Mock Tests 12. Important Solutions 4010. Question Bank … panel navixy