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Relation of limit functions with Arithmetic mean & Quadratic Equations?

Introduction to Limits

If we talk about mathematics, a limit is a value that a function “approaches” as the input “approach” some value. Limits hold a unique value regarding calculus and mathematical analysis and define continuity, derivatives, and integrals.

It is also known as a foundational tool in calculus. It is used to determine whether a function or sequence approaches a fixed value as its argument or index approaches a given point. Limits can be explained for discrete sequences, functions, positions of one or more real-valued arguments, or difficult/complex-valued functions.

Definition of Limits

Limits describe the functions when our input values reach some set point. It is more effective in usage for teachers as well as students.  These can also be used for simple as well as for complex values. It is to know that when an input is introduced what behavior is shown by the function. It is also known as when a function is assigned to output to that of every input. [f(x)].

To find out the limit of a function f, when x approaches b, it becomes equal to x L. As for formula, it becomes

Lim f (x) = L when x approaches b.

Where f denotes function value, b a continuous quantity.

How to Calculate Limits

These are many ways of calculating limits. One is by multiplication rules of limits, by including the value of x, by factoring, and by rationalizing the numerator.

Multiplication rules of limits mean when the limit value is the same for two functions as well as for more than two. For the accurate results algorithms and the techniques of a limit solver with steps may use. 

By including the x value means one needs to know the value of x when being approached.  It does not work when we have a value 0. It works when it has a continuous value. 

By factoring method, it helps in solving polynomial expressions.  Firstly, we need to simplify the equation done through factoring. Secondly, like terms will cancel once we are going to introduce x. 

By rationalizing the numerator used for the values whose numerators have the square root. And also if the denominator has a polynomial expression.  

Its online usage is easy as it involves two processes only first, the requirement of input, and second, one has to enter the value and press compute. You have the results.

There are many functions of a single variable. Existence and one-sided limits, having more general subsets, deleted limits, and non-deleted limits.

It also serves the function on metric spaces so that a limit point should known. 

It also serves the function on topological spaces that are a Hausdorff space Y. Where Y denotes a typological space. At that point, it becomes the set of limits at a particular point. 

It also serves as the limits that have infinite limits. These are the values that have no bound which means the usual limit and functional value does not exist. It is also related to the asymptote. 

Properties of Limits

Its properties are the following:

Firstly, when both right and left-handed limits of a function exist at p so that is equal to L.

Second, to know the continuous function of ‘f’ at p only becomes when x approaches p, p is equal to f(p). 

One can find the limit in terms of sequences also, in non-standard calculus, and in terms of nearness. 

Its application spread over the chemical reactions when a new compound forms as when time function reaches infinity. It will use in the measurement of temperatures as when we place an ice cube in a glass of warm water. Engineers also use to approximate derivatives.  Also used for security purposes. It can used in continuity. It has great use in derivations. 

Arithmetic Sequence by Limits

Arithmetic sequence means number sequence, it is in which the difference remains constant. As in the values 1, 3, 5, 7, 9, 11, … the common difference among them is 2. 

Its formula is a(n) = a1 + (n-1) d

Where a(n) is the nth term, a1 is the first term, n is the term number, and d is a common difference.

Arithmetic Series vs Sequence 

Arithmetic progression counts on the d which is the common difference. Firstly, if it is positive, now the numbers move toward positive infinity. Secondly, if it is negative, they move towards negative infinity. 

Now a question arises that arithmetic sequence and series is one thing? Arithmetic sequence means the set formed by the addition of the values and series means n which is the sum of the objects. 

Geometric sequence and arithmetic sequence also vary as in geometric sequence the consecutive terms remain constant and in an arithmetic sequence, it varies which is the ratio between those terms. 

It is one of the confusing concepts evolved in statistics as we have to think about each common difference and have to create/analyze a precise sequence of numbers. But if we want to reduce such efforts, we may try an arithmetic solver for getting a series of number with the same common difference in it.

Its application is of a wide range in our daily life. Stacking bowls, chairs etc, pyramid-like patterns, to fill up something (like a pool being filled), seating around the tables, fencing, perimeter, waiting for something (bus, train etc), and riding.

Difference between Limit Functions and Quadratic Equations;

Even though both topics are a part of algebra, that doesn’t mean that they both don’t differ. We decided to jot down some fundamental differences between limit functions and quadratic equations for you to understand better! 


In limit function, the limit of a function at point ‘a’ in its domain, if it exists, is the value that function approaches as the argument is near. In easier words, a function can say to have a limit L at ‘a’ if the function can randomly get near L, which can done by choosing values closer and closer to ‘a.

Quadratic Equations

In a quadratic equation, x represents an unknown, and a, b, and c may represent numbers, where a is a non-zero constant. And if a is a non-zero constant, the equation would represent a linear function instead of a quadratic one. Keep in mind that quadratic equations in terms of algebra mean; an equation with the highest exponent 2. It is safe to say that quadratic equations can use in everyday life, as when you may be calculating areas, determining a product’s profit, or even formulating an object’s speed.

Limit vs Quadratic Equation

Another difference is that the Limit function means the value of f (x) as soon as x approaches the given limit (like mentioned earlier). Still, if we talk about quadratic equations, it shows the two values of x where the graph intersects the x-axis.


Last but not least, the limits can be of any function. The limits can found by finding the numerators’ lowest common denominator and then canceling the numerators and denominators’ terms. After simplification, the limit value should substituted in the equation to find the value. In contrast, quadratic functions can found by using the quadratic equations, using middle term breaking, and using the factored form, giving the vertex point. The vertex point can also presented graphically to show the values which intersect the graph.

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