WebFeb 1, 2024 · Answer AnswerGiven that :- AnswerGiven that :-12th term of the A.P is −13 AnswerGiven that :-12th term of the A.P is −13sum of first four terms is 24 four terms is 24Let, the 1st term of the A.P is a. four terms is 24Let, the 1st term of the A.P is a.and common difference of the A.P is d. WebThe 12 th term of an AP is -13 and the sum of its first four terms is 24. Find the sum of its first 10 terms. Advertisement Remove all ads Solution Let a be the first term and d be the …
[Solved] What is the sum of the first 12 terms of an ... - Testbook
WebApr 5, 2024 · By simplifying it, we get the equation of the form: S 4 = 4 a + 6 d . First condition given in the question is 12th term is -13. Substituting this in equation (1), we get it as: a + 11 d = − 13 ……………… (3) By substituting sum of 4th term as 24, we get it as: 4 a + 6 d = 24 ………………… (4) By substituting 11d on both sides of equation (3), we get: WebExample 1: Find the 20 th term of an AP whose 3 rd term is 5 and 7 th term is 13? Solution: It is given that T 3 = 5 and T 7 = 13. Using the n th term of AP formula, a + 2d = 5 ... (1) a + 6d = 13 ... (2) Subtracting (1) from (2): 4d = 8 d = 2. Substituting this in (1): a + 2 (2) = 5 a = 1. Now, the 20 th term is: how much is the ltbs worth
Arithmetic Progression - AP Formula, nth Term, Sum, Examples
WebIf 12 th term of an A.P is −13 and the sum of the first four terms is 24, what is the sum of first 10 terms? Medium Solution Verified by Toppr Correct option is A) Let a,d be the first … Webin an AP the sum of first n terms is 3n2/2 + 13n/2 Solution Verified by Toppr Was this answer helpful? 0 0 Similar questions The first term of two APs are equal and the ratios of their common differences is 1:2. If the 7th term of first AP. and 21th term of second A.P. is 23 and 125 respectively. Find two A.P.s. Medium View solution > WebJan 11, 2024 · 12th term of an AP is (-13) The sum of the four terms is 24. To find: The sum of the first ten terms. 12th term = a₁₂ = -13. → a + (12 -1)d = -13. → a + 11d = -13 . → a = -13 - 11d. Now, Sum of the four terms = 24. Sₙ = Putting the value of 'a' we get. So, The value of d = 28. Now, → a + 11d = -13 . Putting the value of 'd' we get ... how do i get internet in my outbuilding