The recursive formula of the explicit formula
is 
The explicit formula is given as:

When n = 1, we have:


When n = 2, we have:


When n = 3, we have:


So, we have:



Rewrite the functions as follows:



So, we have:



Express 2 as 3 - 1

Substitute n for 3

Hence, the recursive formula is 
Read more about recursive and explicit formulas at:
brainly.com/question/11235928
Answer:
ms word can help you to writer and print
ur document and make u more attractive
Explanation:
a
Answer: DMZ
Explanation:
DMZ is the demilitarized zone network and it is use in providing he various services to the users or customers by using the public internet. It basically contain organizational services in the logical and physical sub-network and usually works in large network.
The main purpose of DMZ that it is use as web server over the internet for reaching to the users and customers. It also add one additional layer in the organization for security purpose.
Some of the services that DMZ provides as web server, DNS and proxy server.
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