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Before studying about permutation and combination, we will have to know about factorial.The product of the positive integers from 1 to n is denoted by n! And we read it as “factorial “

Shares and mutual funds-Share is the smallest unit of the capital of a company. In other words, A unit of ownership, that represents an equal proportion of a company’s capital is called as shares.

The consumer price index measures the amount of money which consumers of a particular class have to pay to get a basket of goods & services at a particular point of time in comparison to what they paid for the same in the base period.

Integration is the reverse process of differentiation. It is also called anti-differentiation.

For drawing less than cumulative frequency polygon or curve (or less than ogive), first of all the cumulative frequencies are plotted against the values (upper limits of the class intervals) up to which they correspond and then we simply join the points by line segments, curve thus obtained is known as less than ogive.

The exponential distribution is a continuous probability distribution and it is a widely used distribution in various fields such as engineering, research, data sciences etc.

The concept of sets is widely used in mathematics as well as in other fields such as engineering, computer sciences etc.

Introduction: In order to understand the concept of relations, let’s consider the following example:

Let X and Y are two sets. A relation f from X to Y is said to be a function if for every x ∈ X there is a unique element y ∈ Y, such that (x, y) ∈ X

These standards mainly represent the units of measurements which are close to the possible accuracy with help of present day technological.

The Java AWT API is a set of classes and methods for developing and managing GUI applications.

A flowchart is a diagrammatic description of any process or workflow that uses symbols to express it in a systematic and sequential manner.

A tree data structure is a non-linear data structure since it does not store data in a sequential order.

Output Devices are the devices that are used to show the results or details.

Errors may rise from different sources and are classified as gross error, systematic error and random errors.

The K-Map is used to simplify the Boolean Functions in a very easy way. The K-Map was introduced by Karnaugh. 

A number system is a way of writing any number. It can be represented by using any symbols or digits. It provides distinctive representation.

A single-phase induction motor has a cage winding on its rotor and single phase winding on the stator. The size of these motors is very small.

Insertion sorting is a very basic process for sorting numbers in an ascending or descending order.

The registers are formed using a group of flip flops. The shift registers are mainly used for transferring data or storing multiple bits.

Python is a programming language that is frequently used. It was created by Guido van Rossum and released in 1991.

In Python, strings are byte arrays that represent Unicode characters.

Uses of computers in different areas, like : Business, Education, Banking, Military, Healthcare and Communication.

The State transition matrix is that matrix whose product with the state vector at initial time gives the value of variable x for time t.

A programme is a set of instructions that directs a computer to perform specific activities.

Object has states and behaviors that they exhibit.

Cell splitting in mobile communication is the process in which the bigger cells split up into smaller ones.

A computer network is a collection of computers connected by a communication media like cable or wire.

A servlet’s life cycle is divided into five levels: 1) Loading of Servlet 2) Creating instance of Servlet 3) Invoke init() once 4) Invoke service() repeatedly for each client request 5) Invoke destroy().

A function is said to be positive Real function if it has all the poles and zeros on the left half of the S-plane. Re[ H(jw) ] >=0 for all ‘w’