Question

Search: the seventh term of a geometric series is 16 times the third term and fifth term is 1/16. find second term,

Answer 1

Answer:

7th/3rd term=4r

4r=16, r=4

5th term is 1/16

1/16=ar^4-1

1/16=a4^3 or 64a=1/16 a=1/16*64

2nd term= (1/16*64)*4^1= 1/256

Step-by-step explanation: