WebThe sum of the first n terms of an arithmetic progression is given by. Sn = n 2(a+l), where a and l are the first and last terms of the AP respectively. Here, n=10 and Sn = 100. 100= 10 2(a+l) a+l = 100 5 =20. ∴ The sum of the first and the last terms of the given AP is 20. Suggest Corrections. WebThe last term of the A.P ( l) = 29 Sum of all the terms ( Sn) = 155 Let the common difference of the A.P. be d. So, let us first find the number of the terms ( n) using the formula, 155 = ( n 2) ( 2 + 29) 155 = ( n 2) ( 31) 155 (2) = (n) (31) n = 310 31 n = 10 Now, to find the common difference of the A.P. we use the following formula,
The last term of A.P. is 38 and the middle term is 13. What if
WebAn AP consists of 37 terms. The sum of the three middle most terms is 225 and the sum of the last three is 429. Find the AP. Solution: Given, the series consists of 37 terms. Sum of three middle most terms = 225. Sum of last three terms = 429. We have to find the AP. Number of terms, n = 37 is odd. Middle term = (n+1)/2 th term = (37+1)/2 = 38/ ... Web22 minutes ago · The Columbus Blue Jackets have fired coach Brad Larsen after two seasons without a playoff appearance. General manager Jarmo Kekalainen announced the move Saturday after the team finished last in ... highly flammable liquids toolbox talk
The sum of the first 21 terms of an AP is 28 and the sum of the
WebJan 3, 2024 · In an AP, the first term is -4, the last term is 29 and the sum of all its terms is 150. Find its common difference. WebThe first term of an AP is 5, the last term is 45 and the sum is 400. Find the number of terms and the common difference. fvdvdfv df ddddff fd df d f; Premium Online Home Tutors 3 Tutor System Starting just at 265/hour. Demo. WebIn an AP, the first term is -4, the last term is 29 and the sum of all its terms is 150. Find its common difference. Solution: Suppose that a is the first term and d is the common difference, then we have: Search for: i. More Material. Write … small refrigerator with frost free freezer