If first, second and eighth terms of a G.P. are respectively n –4 , n n , n 52 , then the…
Mathematics · JEE Main · NTA Exams — Progression and Series
If first, second and eighth terms of a G.P. are respectively
n–4, nn, n52, then the value of n is
n–4, nn, n52, then the value of n is
- 1
- 10
- 4
- none of these
Answer
(C) 4
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- If the roots of the equation x^ 3 -12 x^ 2 +39 x-28=0 are in AP, then the common difference will be
- If 3+5+7+ + n terms 5+8+11+ .+10 terms =7 then the value of n is
- The product of n positive numbers is unity, then their sum is
- Let S_ k = _ r=1 ^ k ^ -1 ( 6^ r 2^ 2 r+1 +3^ 2 r+1 ) Then _ k S_ k is equal to
- The sum of first ten terms of an AP is four times the sum of its first five terms, then ratio of first term…
- If the first and the nth terms of a G.P. are a and b respectively and P is the product of the first n terms…
- The sum of n terms of the series 4 3 + 10 9 + 28 27 + is :
- Find the sum of an infinitely decreasing G.P., whose first term is equal to b + 2 and the common ratio is…
More Progression and Series questions · Browse all practice questions