Home
Class 12
MATHS
If the first and the (2n+1) -th terms pf...

If the first and the (2n+1) -th terms pf AP, GP and HP are equal and their n-th terms are respectively a , b , c then always

A

`a=b=c`

B

`agebgec`

C

`a+c=b`

D

`ac-b^(2)=0`

Text Solution

Verified by Experts

The correct Answer is:
B, D
Promotional Banner

Similar Questions

Explore conceptually related problems

If the first and the (2n-1)^th term of an A.P,G.P anf H.P are equal and their nth term are a,b,c respectively,then

If the first & the (2n + 1)th terms of an A.P. , a G.P & an H.P. of positive terms are equal and their (n + 1)th terms are a, b & c respectively , then

If the first and the nth terms of a G.P are a and b , respectively, and if P is the product of the first n terms then prove that P^2=(a b)^ndot

Find the 31th term of an AP whose 11th term is 38 and the 16th term is 73.

If the first and the n^("th") term of a G.P. are a and b, respectively, and if P is the product of n terms, prove that P^2 = (ab)^n .

Compute the 100th term of HP if the 10th and 20th term of HP are 20 and 40 respectively.

Show (m+n)th and (m-n)t h terms of an A.P. is equal to twice the mth terms.

In an AP, if the mth and (m + n) th terms are n.and 0 resp then nth term will be

If the sum of the first 14 terms of an AP is 1050 and its first term is 10 , find the 20th term .

If the sum of the first 14 terms of an AP is 1050 and its first term is 10, find the 20th term.