Question

Find the nth term of a.p. : 625, 125, 25, 5, 1, 1/5, ... ratio

Answer 1

Answer:

5^(5-n)

Step-by-step explanation:

This is the G.P.

where a = 625 & r = 1/5

An = 625 × (1/5)^n-1

= 5^(4-n+1)

= 5^(5-n)

= 5^5 / 5^n