The first and the n th terms of a GP are a and b respectively and if 'p' is the product…

Mathematics · JEE Main · NTA Exams — Progression and Series

1. \((a b)^{n}\)
2. \((a b)^{n / 2}\)
3. \((a b)^{n-1}\)
4. None of these

Answer

(B) (a b)^ n / 2

Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.

Related practice questions

• The number of terms of the G.P. 3, 3 2 , 3 4 , needed to obtain a sum of 3069 512 is
• The sum of n terms of the following series 1+(1+ x )+ [1+ x + x ^ 2 )+ . will be
• Let H_ 1 , H_ 2 , H_ 3 , , H_ 2 n+1 are in HP then _ i=1 ^ 2 (-1) ( H_ i +H_ i+1 H_ i -H_ i+1 ) is equal to :
• If for an A.P. T 3 = 18 and T 7 = 30 then S 17 is equal to
• 1 + 2.2 + 3.2 2 + 4.2 3 + .... + 100.2 99 equals
• If the roots of the equation a(b-c) x^ 2 +b(c-a) x+c(a-b)=0 are equal, then a_ 1 b_ 1 c are in
• Let the positive numbers a,b,c,d be in A.P. Then, abc, abd, acd, bcd are
• If (x-y) x and (x+y) are in HP, then x 5 e c(y / 2) is equal to

More Progression and Series questions · Browse all practice questions