In an ap the sum of first 10 terms is -80
WebFeb 28, 2013 · In an A.P. the sum of first ten terms is –80 and the sum of next ten terms is –280. Find the A.P Share with your friends 1 Follow 1 S. Usha Rani, Meritnation Expert added an answer, on 2/4/14 Let a and d be the first term and common difference of A.P. Here, S 10 = –80 So,-80=10/2 [2a+ (10-1)d] -80/5=2a+9d Sum of next 10 terms = –280 =>2a+19d=-36 WebFeb 10, 2024 · → sum of first 10 terms of AP = (n/2) [2a + (n - 1)d] = (10/2) [2*10 + (10 - 1)d] = 5 [20 + 9d] = (100 + 45d) since, d is a natural number , therefore, we can conclude that, a negative number is not possible to be term of given AP . therefore, (-80) is not a term of given AP. Advertisement Advertisement
In an ap the sum of first 10 terms is -80
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WebFind the Sum of the First 10 Terms 1 , -2 , 4 , -8 , 16 , -32 , 64 , -128. 1 1 , −2 - 2 , 4 4 , −8 - 8 , 16 16 , −32 - 32 , 64 64 , −128 - 128. This is a geometric sequence since there is a common … WebIn an AP of 50 terms the sum of first 10 terms is 210 and the sum of the last 15 terms is 2565. Find the AP.#rdsharma #cbsemaths #gradeboostermathsclasses #n...
WebThe sum of the first five terms of an AP and the sum of the first seven terms of the same AP is 167. If the sum of the first ten terms of this AP is 235, find the sum of its first twenty terms. Q. WebNigeria 122 views, 10 likes, 0 loves, 1 comments, 0 shares, Facebook Watch Videos from BCOS TV - Broadcasting Corporation of Oyo State: NEWS AROUND THE...
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WebHow many terms are in the sequence, if you're given the first few terms and the last term? Solve for "n" in the sequence equation.
WebOct 27, 2024 · Answer: The explicit formula for the AP is -2n + 3. 1, -1 , -3, -5, -7, -9......... Step-by-step explanation: The sum of the first n terms = n/2 [2a1 + (n - 1)d] where a1=first term … desi boyz all song lyricsWebThe sum of n terms of an AP can be found using one of the following formulas: S n = n/2 (2a+ (n−1)d) S n = n/2 (a 1 +a n) Here, a = a 1 = the first term, d = the common difference, n = number of terms, a n = n th term, S n … desi blinds hesperia caWebApr 2, 2024 · The median of the distribution given below is 14.4. Find the values of x and y, if the sum of frequency is 20. Find the common difference ' d ' of an AP whose first term is 10 and the sum of the first 14 terms is 1505 . For what value of ' n ', are the nth terms of the APs : 9,7,5,….. and 15,12,9,…. the same? desi boys torrentWebConsider an arithmetic progression (AP) whose first term is a 1 (or) a and the common difference is d. The sum of first n terms of an arithmetic progression when the n th term … chubb inland marine policyWebRight Answer is: A SOLUTION Sum of the first 10 terms of the AP = -80 We have Sn = n 2(2a+(n−1)d). ⇒ S10 = 10 2(2a+(10−1)d) ⇒ −80= 5(2a+9d) ⇒ −16= 2a+9d−−−(i) Sum of the next 10 terms of the AP = -280 Sum of the first 20 terms = -80 -280 = -360 i..e, S20 = 20 2(2a+(20−1)d)= −360 ⇒−360 =10(2a+19d) ⇒−36 =2a+19d−−−(ii) desi boyz full movie online watch hotstarWebAnswer: The first number is x, the second is x+5, the 3rd is x+10, etc. So the sum of the first 9 terms is 9x + (5 + 10 + 15 + etc.) = 9x + 5(1 + 2 + 3 + 4 + 5 + 6 ... chubb injury statusWebIn the given AP, the first term is a = 7 and the common difference is d = 4. Let us assume that 301 is the n th term of AP. Then: T n = a + (n - 1)d 301 = 7 + (n - 1) 4 301 = 7 + 4n - 4 301 = 4n + 3 298 = 4n n = 74.5 But 'n' must be an integer. Hence 301 cannot be a term of the given AP. Answer: 301 cannot be a term of the given AP. chubb insights