Find the GP whose 4th and 7th terms are `1/18` and `-1/486` respectively

Find teh GP whose 4 th and 7 th terms are (1)/(18) and -(1)/(486) respectively

Find the sum of first 17 terms of an AP whose 4th and 9th terms are -15 and -30 , respectively.

Find the sum of first 17 terms of an AP whose 4th and 9th terms are -15 and -30 , respectively.

Find the 10 th term of the sequence whose 7 th and 12 th terms are 34 and 64 respectively.

If the 6th and 10th terms of a G.P. are 1/16 and 1/256 respectively. Find the G.P. if its terms are real numbers.

The 4th and 7th terms of a G.P. are 18 and 486 respectively. Find the G.P.

The 4th and 7th terms of a G.P. are 18 and 486 respectively. Find the G.P.

If in a GP, 5th term and the 12th term are 9 and (1)/(243) respectively, find the 9th term of GP.

If the 4th and the 7th terms of an H.P. are 1/2 and 2/7 respectively . Find the first term.