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:
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Answer:
The answer to this question is given below in this explanation section.
Explanation:
"Title bar"
A title bar is a small strip that extends across the top of a window.It display the title of the window and typically include the close minimize and maximize button.In macros these buttons are on the left side of the title bar while in windows they are on the right.The title bar is a horizontal bar located at the top of a window in a GUI.It displays the title of the software name of the current.
"Menu bar"
A menu bar is a graphical control elements which contains drop down menu.The menu bar purpose is to supply a common housing for window or application specific menu which provide access to such function as opening file interaction with an application or displaying help documentation or manuals.
Explanation:
Create a SmartArt graphic to quickly and easily make a visual representation of your information. You can choose from among many different layouts, to effectively communicate your message or ideas. SmartArt graphics can be created in Excel, Outlook, PowerPoint, and Word, and they can be used throughout Office
and if it correct than give
Word Processing Programs cannot be used for DTP
Explanation:
DTP software cannot be replaced with Word Processing Programs. DTP software is used for creating publishing document like post card, business card, calendars, and books where as the word processing software is used for creating and editing predominantly text document and once can edit text, copy, paste , delete and format text. Word processor relies heavily on editing of the contents rather than graphics or page layout where as DTP software is used to create image heavy newsletters, magazines, adverts, and brochures where layout is important.
Answer:
In several organizations, the operating system (OS) functions at the core of the personal computers in use and the servers. The OS ought to be secure from external threats to its stored data and other resources.
Explanation:
In this regard, Intrusion detection systems play a critical role in protecting the sensitive data, along with software firewalls. Hardware firewalls protect the hardware elements in the network (such as storage drivers etc), the IDS and as well as the IPS.