WebApr 5, 2024 · 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: a = − 13 − 11 d ………………….. (5) By substituting this in equation (4) we get: WebSubstituting these values in the AP sum formula, S n = n/2 [2a + (n - 1) d] S n = 3/2 (2 (400000) + (3 - 1) (50000)) = 3/2 (800000 + 100000) = 3/2 (900000) = 1350000 He earned $1,350,000 in 3 years. We can get the same answer by general thinking also as follows: The amount earned in 3 years = 400000 + 450000 + 500000 = 1350000.
In an AP if the 12th term is -13 and the sum of its four terms is 24 ...
WebMar 30, 2024 · The sum of first n terms of an AP is given by S n = 2n 2 + 3n . Find the sixteenth term of the AP. Find the sixteenth term of the AP. This is a question of CBSE Sample Paper - Class 10 - 2024/18. WebJan 16, 2024 · For an AP, the sum of the first n terms can be calculated if the first term and the total number of terms are known. The formula for the sum of AP is: Here, S = Sum of n terms of AP n = Total number of terms a = First term d = Common difference Arithmetic Progression Sum Formula When First and Last Terms are Given: clarkson college acls renewal
Arithmetic Progression Formulas and nth Term - Embibe
WebSum of first n terms of an AP Finding first term and common difference when sum is given Google Classroom In an arithmetic sequence: S_ {20} = 500 S 20 = 500 a_ {20}= 44 a20 = 44 Find the first term, a_1 a1, of the sequence. a_1 = a1 = Stuck? Review related articles/videos or use a hint. Report a problem 7 4 1 x x y y \theta θ \pi π 8 5 2 0 9 6 3 WebFeb 2, 2024 · In an AP if the 12th term is -13 and the sum of its first four terms is 24 find the sum of its first 1,536 views Feb 2, 2024 In an AP if the 12th term is -13 and the sum of its first four... WebAnswer: Therefore, the sum of either 4 terms or 13 terms of the given AP is 78. Example 3: Given a = 5, d = 3, and a n = 50, find the value of S n. Solution: The given values are a = 5 = a 1, d=3, and a n =50. We know that the nth … download driver for hp scanjet 4890