Question

find the 12th term of a G.P whose 8th term is 192 and the comman ratio is 2.

Answer 1

or ... we can find the 5th term of a GP whose first term is 192 and has a common ratio of 2

Answer 2

an = a1 r^(n-1)

Answer 3

or if we start at a0 ....

we can find the 4th term of a GP whose zeroth term is 192 and has a common ratio of 2

an = a0 r^n