The Sum Of 4th And 8th Term Of An Ap Is 24 And The Sum Of The sum of 4 t h and 8 t h form of an a p is 24 and the sum of its 6 t h and 10 t h terms is 44. find the sum of first 10 t h t e r m s of a p . view solution. Transcript. ex 5.2, 18 the sum of 4th and 8th terms of an a.p. is 24 and the sum of the 6th and 10th terms is 44. find the first three terms of the a.p. we know that an = a (n – 1) d so, a4 = a (4 – 1) d a4 = a 3d also, a8 = a (8 – 1)d a8 = a 7d similarly, a6 = a (6 – 1)d a6 = a 5d and a10 = a (10 – 1)d a10 = a 9d.
Q18 The Sum Of The 4th And 8th Terms Of An Ap Is 24 And The S The sum of the 4 th and 8 th terms of an ap is 24 and the sum of the 6 th and 10 th terms is 44. find the first three terms of the ap. solution: the formula for n th term of an ap is aₙ = a (n 1) d. here, aₙ is the n th term, a is the first term, d is the common difference and n is the number of terms. given, a₄ a₈ = 24 (a 3d. It is given that, sum of 4 th & 8 th terms of ap is 24 which implies, a 4 98 = 24 putting values we get: ⇒ a 3 d a 7 d = 24 ⇒ 2 a 10 d = 24 now we will divide by 2 both sides, we get: ⇒ a 5 d = 12 . . . . 1 it is also given that the sum of 6 th and 10 th term of ap is 44 ⇒ a 6 a 10 = 44. The sum of 4th and 8th terms of an a.p. is 24 and the sum of the 6th and 10th terms is 34. find the first term and the common difference of the a.p. For an a.p., show that (m n) th term (m – n) th term = 2 × m th term. how many three digit numbers are divisible by 7? how many two digit numbers are divisible by 3? find the sum of the a.p., 14, 21, 28, , 168. the first term of an a.p. is 20 and the sum of its first seven terms is 2100; find the 31 st term of this a.p.
The Sum Of 4th And 8th Term Of An Ap 24 Sum Of 6th And 10th Term Is 44 The sum of 4th and 8th terms of an a.p. is 24 and the sum of the 6th and 10th terms is 34. find the first term and the common difference of the a.p. For an a.p., show that (m n) th term (m – n) th term = 2 × m th term. how many three digit numbers are divisible by 7? how many two digit numbers are divisible by 3? find the sum of the a.p., 14, 21, 28, , 168. the first term of an a.p. is 20 and the sum of its first seven terms is 2100; find the 31 st term of this a.p. The sum of 4 t h and 8 t h form of an a p is 24 and the sum of its 6 t h and 10 t h terms is 44. find the sum of first 10 t h t e r m s of a p . view solution. Let the first term of the a.p. be a and common difference be d. by formula, a n = a (n 1)d. given, sum of the 4th and 8th terms of an ap is 24. ⇒ a 4 a 8 = 24. ⇒ a (4 1)d a (8 1)d = 24.
Ex 5 2 18 The Sum Of 4th And 8th Terms Of An Ap Is 24 The sum of 4 t h and 8 t h form of an a p is 24 and the sum of its 6 t h and 10 t h terms is 44. find the sum of first 10 t h t e r m s of a p . view solution. Let the first term of the a.p. be a and common difference be d. by formula, a n = a (n 1)d. given, sum of the 4th and 8th terms of an ap is 24. ⇒ a 4 a 8 = 24. ⇒ a (4 1)d a (8 1)d = 24.
Comments are closed.