Question

If the first term in a geometric series is 5 and the common ratio is 2 then what will be the eighth term?​

Answer 1

Answer:

the 8th term is 640

Step-by-step explanation:

we have given that

first term (a)=5

common ratio (r)=2

so the nth term is=ar^(n – 1)

we have to find 8th term

8th term = 5×2^(8 – 1)

8th term = 5×2^7

8th term = 5×128=640