Question

Find the 7th term of the GP 3, 6, 12, …​

Answer 1

Answer:

Hope it will be helpful

Step-by-step explanation:

Here, a=3,n=7

r = 6/3

= 2

Therefore,

Sn = a(r^n - 1/ r -1)

S7 = a(r^7 - 1/r - 1)

= 3(2^7 - 1/ 2 - 1)

= 3(128 - 1)

= 381

Answer 2

Answer:

192

Step-by-step explanation:

given G.P 3,6,12....

here a=3 common ratio r=6/3=2

$t_{7}=ar^{7-1} \\=ar^{6} =3.2^{6}=3.64=192$