Question

What is the 8th term of the geometric sequence 3, 9, 27, …?

Answer 1

81

Answer 2

\[3^8=6561\]

Answer 3

how did u get that LGP?

Answer 4

OHHH wait i thought it was the next sequence, srrry....u are rite

Answer 5

The Geometric Progression is given to by the formula: \[a _{n}=a _{n1}r^{n-1}\]

In this case, the first therm is 3, same as the r \[\frac{a_{n+1}}{a_{n}}\]

So, \[a_{8}=3.3^{8-1}=3.3^7=3^8\]