Given:

To find:
The recursive formula.
Solution:
We have,

It is in the form of explicate formula of a GP, .i.e.,
.
Here,
and
.
The recursive formula of a GP is

Using this the recursive formula for given problem is

Therefore, the required recursive formula is
.
Answer:
19.64
the permieter is 5 so 5/2=2.5 2.5x2.5=6.25 6.25x3.14=19.64
Answer: 492016
Step-by-step explanation:
88+8698= 8786
8786×56= 492016