For an a.p. sn 3n2 + 5n and tm 164 then m
WebJul 26, 2024 · If the sum of n terms of an AP is (3n2 + 5n) and its mth term is 164, find the value of m. LIVE Course for free. Rated by 1 million+ students Get app now Login. Remember. Register; Test; ... If the sum of n terms of an A.P. is 3n^2 + 5n then which of its terms is 164? A. 26th B. 27th C. 28th D. none of these. asked May 14, 2024 in Arithmetic ... WebJun 27, 2024 · Click here 👆 to get an answer to your question ️ If the sum of n terms of an A.P is 3n²+5n and its m th term is 164, find the value of m. ... Given tm = 164. 164 = [a + (n -1)d] 164 = [(8) + (m -1)6] ... Advertisement pavithraa2004 pavithraa2004 Answer: m = 27. Step-by-step explanation: Sn =3n2+5n. S1=a1=3(1)2+5(1)=8. S2=3(2)2+5(2)=22. S2 ...
For an a.p. sn 3n2 + 5n and tm 164 then m
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WebMar 7, 2024 · Transcript. Ex 9.2,13 If the sum of n terms of an A.P. is 3n2 + 5n and its mth term is 164, find the value of m. Let a1, a2, … an be the given A.P Given, Sum of n terms = 3n2 + 5n Sn = 3n2 + 5n Putting n = 1 in (1) S1 = 3 × 12 + 5 × 1 = 3 × 1 + 5 × 1 = 3 + 5 = 8 Sum of first 1 terms = First term ∴ First term = a1 = S1 = 8 Sn = 3n2 + 5n …(1) Putting n … Web#class10#arithmeticprogressionsIn an AP, if Sn = 3n2 + 5n and ak = 164, find the value of k.
WebT m = 164 a + m-1 6 = 164 8 + m-1 6 = 164 6 m = 162 m = 27. Hence option (2) is the answer. WebJan 1, 2024 · Thus, the nth term of the A.P = 6n – 7. Show less. Related questions. 0. votes. 1. answer. The sum of the first n terms of an AP is given by sn=3n2-n , determine the AP and its 25thterm. asked Nov 7, 2024 in Class X Maths by aditya23 Expert (1,426 points) 0. votes. 1. answer. The sum of the first n terms of an AP is 3n2+6n . find the nth term ...
WebS n = 3n 2 + 5n. We need to find which term of the A.P. is 164. Let us take 164 as the n th term. So we know that the n th term of an A.P. is given by, a n = S n - S n-1. So, 164 = S n - S n-1. 164 = 3n 2 + 5n - [3(n-1) 2 +5(n-1) ] Using the property, ( a - b) 2 = a 2 + b 2 - 2ab. We get, 164 = 3n 2 + 5n - [3(n 2 + 1 - 2n) + 5 ( n-1)] 164 = 3n ... WebApr 3, 2024 · In an AP if ${S_n} = 3{n^2} + 5n$ and ${a_k} = 164$, find the value of k. ... = 3{n^2} + 5n$ and ${a_k} = 164$. We know that the sum of the first term is the first term itself. So, we do ${S_1} = 3{(1)^2} + 5(1) = 8$. ... {a_1} = a = 8$, Then the sum of the first two terms is ${S_2} = 3{(2)^2} + 5(2) = 22$. Therefore, ${a_1} + {a_2} = 22 ...
WebIf the sum of n terms of an AP is 3n 2 + 5n, then which of its terms is 164? This question was previously asked in. NVS TGT Mathematic 2024 Shift 1 Official Paper Attempt …
WebOct 26, 2016 · In an AP, if Sn = 3n2 + 5n and ak = 164, find the value of k. - 870002. s8l7essarminna s8l7essarminna 27.10.2016 Math Secondary School answered • expert verified In an AP, if Sn = 3n2 + 5n and ak = 164, find the value of k. See answers Advertisement Advertisement Golda Golda Solution:- teachstarter fact filesouth park meadow movie theaterWebFeb 21, 2015 · If the 5th term of an a.p is 13 and 17 th term is 49, find an and t13. Find the sum of n terms of series whose nth term is tn is 3n^2+2n. If the sum of m terms of an a p is same as the sum of its n terms show that the sum of m+n terms is zero southpark meadows austin restaurantsWebClick here👆to get an answer to your question ️ The sum of n term of an A.P. is 3n^2 + 5n. Find the A.P.Hence, find its 16^th term. Solve Study Textbooks Guides. Join / Login. … southpark meadows apartments austin txWebThe sum of first n terms of an a.p is given by. Taking n=1 we get, Taking n=2 we get, Taking n=3 we get, So, a=5, Now, the 15th term will be: Hence, the 15th term is 89 and AP is 5,11,17,23,... NOTE: Q. The sum of the first n term of an A.P. is given by , Determine the A.P. and its 15th term. south park meadows cinemaWebApr 4, 2024 · If there are only n terms in an AP, then \[{a_n}\]=l, l=last term We will put n=1, 2 in the sum formula and evaluate the first and second term of the A.P. Then we can … teachstarter factors and multiplesWebMar 22, 2024 · Transcript. Ex 9.2,13 If the sum of n terms of an A.P. is 3n2 + 5n and its mth term is 164, find the value of m. Let a1, a2, … an be the given A.P Given, Sum of n … teachstarter factors