Posted by Shane on Tuesday, June 18, 2013 at 1:58am.
Find two geometric progressions having: 54 as third term and 27/32 as ninth term.

maths  Steve, Tuesday, June 18, 2013 at 4:17am
T9 is the 6th term after T3, so
27/32 = 54*r^6
1/64 = r^6
r = ± 1/2
I think you can do the rest.

maths  Shane, Tuesday, August 6, 2013 at 4:38pm
Expand (1x)^4.Hence find S if S = (1x^3)^4  (1x^3)^3 + 6(1x^3)^2  4(1x^3) + 1.
Answer This Question
Related Questions
 Math (Algebra)  How many distinct geometric progressions are there, such that ...
 maths  Find two geometric progression having: 2 as second term and 1458 as ...
 Math  The third term of an AP is 8 and ninth term AP exceeds three times the ...
 math  if the third and ninth term of a geometric series with a positive common ...
 math  The third term of a geometric progressiom is nine times the first term.if...
 maths  the third term of a geometric sequence is 6 and the sixth term is 3 over...
 Maths  A geometric progression has a third term of 20 band sum to infinity ...
 maths  Given that the sum of the first four terms of a geometric sequence is 10...
 math  An arithmetic series has third term 11. The ninth term is 5 times the ...
 maths science and geography  in a geometric sequence,the fifth term is four ...
More Related Questions