Web11 apr. 2024 · And the common difference (d) of the A.P is. ⇒ d = ( 21 − 24) = ( 18 − 21) = − 3. Now we have to find out the number of terms in the A.P if the sum of an A.P is 78. As … Web7 sep. 2024 · The term of the A.P. which is 0 is 10th. To answer this question, we need to follow the following steps: As we know the nth term of an AP that has a = first term, d = common difference and n = number of terms till the nth term is given by using the formula: Now, according to the question, We have an A.P. 27, 24, 21. where the first term or a = 27.
How many terms of an AP 27,24,21, … are required to get the
Web4 mrt. 2024 · How many Terms of the AP 24 21 18 must be taken so that their Sum is 78 Class 10 Maths Chapter 5 Example 13Example 13 : How many terms of the AP : 24, 21, ... Web18 mrt. 2024 · Given A.P. is 27, 24, 21. . . We know that, Sn = n 2 n 2 [2a + (n − 1)d] Here we have, the first term (a) = 27. The sum of n terms (Sn) = 0. Common difference of the … camp hill state high school
How many terms of AP:27,24,21,..... should be taken so that their …
Web13 okt. 2024 · Step-by-step explanation: The given AP is,27,24,21,.... Here first term= a=27 common difference=d=24-27=-3 Let the nth term of the AP=0 => a+ (n-1)d=0 =>27+ (n-1) (-3)=0 => (n-1)= (-27)/ (-3) => n-1=9 => n=9+1 => n=10 So, the 10th term of the AP is 0. hope it will help you. Advertisement dawin32arpit Answer: 10 please mark as brainlist answer WebSum How many terms of the A.P. 27, 24, 21, …, should be taken so that their sum is zero? Advertisement Remove all ads Solution A.P. = 27, 24, 21,… a = 27 d = 24 – 27 = -3 S n … Web21 okt. 2024 · Best answer AP = 3, 5, 7, 9, … Here, a = 3, d = 5 – 3 = 2 and Sn = 120 We know that, ⇒ 120 = n [2+n] ⇒ n2 + 2n – 120 = 0 ⇒ n2 + 12n – 10n – 120 = 0 ⇒ n (n + 12) - 10 (n + 12) = 0 ⇒ (n – 10) (n + 12) = 0 ⇒ n – 10 = 0 or n + 12 = 0 ⇒ n = 10 or n = -12 But number of terms can’t be negative. So, n = 10 Hence, for n = 10 the sum is 120 for the … camp hill state correctional facility pa