k and d (d being variable) are the n th term and common difference of an A.P…
Mathematics · JEE Main · NTA Exams — Progression and Series
k and d (d being variable) are the nth term and common difference of an A.P. respectively. If the multiplication of \((n-1)^{\text {th }},(n+3)^{\text {th }}\) term of an A.P. is maximum then \(\frac{k}{d}\) is equal to
- 3
- 4
- 5
- 6
Answer
(B) 4
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- The sum of an infinite G.P. is 4 and the sum of the cubes of its terms is 192. The common ratio of the…
- The first two terms of a geometric progression add up to 12. The sum of the third and the fourth term is 48…
- Let f (x) be a polynomial of second degree. If f(1)=f(-1) and a, b, c are in AP, then f^ (a) f^ (b) f^ (c)…
- If a_ 1 b_ 1 c are three unequal positive quantities in HP, then :
- If a, b, c, d are in GP, then the value of (a-c)^ 2 +(b-c)^ 2 +(b-d)^ 2 -(a-d)^ 2 is
- _ n=0 ^ ( _ e x )^ n n! is equal to
- If a, b, c, d are in G.P. then a n + b n , b n + c n , c n + d n are in
- Given below are two statements. Let a, r R- 0,1,-1 and n be an even number. STATEMENT - 1: a a r a r^ 2 a r^…
More Progression and Series questions · Browse all practice questions