Q4 of 105 Page 155

Which term of the GP.
, ,,….is ?

First term (a) =

Common ratio (r)

n^th term in the GP (a_n) = ar^n-1

= ^n-1 = )ⁿ

()⁷ = )ⁿ

Equating powers on both sides

n = 7

Which term of the GP.

2, 8, 32, ……. is 512?

Which term of the GP.

√3, 3, 3√3…… is 729?

Find the 12^th term of a GP. Whose 8^th term is 192 and the common ratio is 2.

The 4^th term of a geometric progression is and the seventh term is Find the geometric series.

Questions · 105

6. Progressions

1 1 1 1 2 2 2 2 2 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 1 2 2 3 3 3 3 3 4 5 5 6 7 8 9 10 11 12 13 14 15 16 17 1 1 1 1 2 2 2 3 3 3 3 3 3 3 4 5 6 7 7 8 9 10 11 12 13 14 1 1 1 2 2 2 2 3 3 3 3 3 3 3 3 3 4 1 1 1 1 2 3 3 4 4 4 5 6 7

Which term of the GP., ,,….is ?