Advertisements
Advertisements
Question
Find, which of the following sequence from a G.P. :
8, 24, 72, 216, .............
Advertisements
Solution
Given sequence: 8, 24, 72, 216, .............
Now,
`24/8 = 3, 72/24 = 3, 216/72 = 3`
Since `24/8 = 72/24 = 216/72` = ........ = 3, the given sequence is a G.P. with common ratio 3.
APPEARS IN
RELATED QUESTIONS
If the first and the third terms of a G.P. are 2 and 8 respectively, find its second term.
Find the geometric progression with 4th term = 54 and 7th term = 1458.
Find the seventh term from the end of the series :
`sqrt(2), 2, 2sqrt(2), ........., 32.`
Find the third term from the end of the G.P.
`2/27, 2/9, 2/3, .........,162.`
If for a G.P., pth, qth and rth terms are a, b and c respectively; prove that : (q – r) log a + (r – p) log b + (p – q) log c = 0
Find the sum of G.P. :
`(x + y)/(x - y) + 1 + (x - y)/(x + y) + ..........` upto n terms.
How many terms of the geometric progression 1 + 4 + 16 + 64 + …….. must be added to get sum equal to 5461?
Q 3.1
Q 3.2
Find the 5th term of the G.P. `5/2, 1, .........`
