If first term=a, common ratio=r then find the value of `t_(27)=____.`

If first term = a, common ratio = r, then find the value of t_(9)" and "t_(27) .

Sum to infinity of a GP is 15 and the sum to infinity of their squares is 45 .If a is the first term and r is the common ratio then the sum of the first 5 terms of the AP with first term a and common difference 3r is

If the first term, common ratio and the sum of first n terms of a G.P. be a, r and S_(n) respectively, find the value of S_(1) + S_(2) + S_(3) +….+S_(n) .

Consider an infinite geometric series with first term a and common ratio r. if the sum is 4 and the sencond term is 3/4 ,then

Find the number of terms of a G.P. whose first term is ¾, common ratio is 2 and the last term is 384.

In a geometric progression with first term a and common ratio r, what is the arithmetic mean of first five terms?

In a geometric progression with first term a and common ratio r, what is the arithmetic mean of first five terms ?

Consider an infinite geometric series with first term a and common ratio r. If its sum is 4 and the second term is 3/4, then

Consider an infinite geometric series with first term a and common ratio r. If its sum is 4 and the second term is ( 3)/( 4) , then :

Consider an infinite geometric series with first term 'a' and common ratio 'r'. If the sum is 4 and the second term is 3/4 then