[Maths Class Notes] on Integration Questions Pdf for Exam

Integration is the calculation for an integral. Integrals in maths are used for finding many useful quantities like areas, volumes, displacement, etc. Whenever we speak about the integrals, it is also related to many definite integrals. The indefinite integrals are also used for the antiderivatives. Integration is a very important calculus topic in Mathematics so we solve the integration questions in our workbook, other than differentiation (which also measures the rate for change of any of the functions concerning its variables). It is a big topic which is also discussed at a higher level class like in Class 11th and 12th. In this integration questions topic, Integration by parts and by the substitution is also explained broadly. Here, we will learn about the definition for the integrals in Maths, formulas for the integration along with the examples and integration questions.

Integration Definition

The integration and the integration questions we will solve will tell us about the summation of the discrete data. The integral is also calculated to find the functions which will describe the area, displacement, volume, that happens thanks to a set of small data, which can’t be measured singularly. In a broad sense, in calculus, the thought of limit is employed where algebra and geometry are implemented. Limits help us within the study of the results of points on a graph like how they meet up with each other until their distance is nearly zero. We know that there are two major sorts of calculus –

• Differential Calculus

• Integral Calculus

The concept of integration has developed to unravel the subsequent sorts of problems:

• To find the matter function, when its derivatives are given.

• To find the area which is bounded by the graph for a function under a few of the constraints.

These two problems also lead to the development of the concept known as the “Integral Calculus”, which also consist of the definite and indefinite integral. In calculus, the concept for differentiating a function and then integrating a function is also linked using the theorem known as the Fundamental Theorem of Calculus. 

Maths Integration and Integration Questions

In the Integration questions, integration may be a method of adding or summation the parts to seek out the entire problem. It is also the reverse process for the differentiation, where we put out the functions into different parts. This particular method is used to find the summation under a big scale. Calculation of small addition problems is a simple task which we will do manually or by using calculators also. However, for big additional problems, where the limits could reach to even infinity, integration methods are used. 

Integration (integration questions) and the differentiation are both the important parts of calculus. The concept level of those topics is extremely high. Therefore, it is then introduced to us at a higher secondary level and then during engineering or higher education. To get inside knowledge about the integrals, read the complete article here.

Integral Calculus

Here learn more about calculus.

Let us now attempt to understand what does that mean:

Take an example for the slope of a line in a graph to see what differential calculus is:

Normally, we can find the slope just by using the slope formula. But what if we are given to seek out a neighbourhood of a curve? For a curve, the slope of the points varies, and it’s then we’d like a method of fluxions to seek out the slope of a curve.

You must be conversant in checking out the derivative of a function using the principles of the derivative. Wasn’t it interesting? Now we are going to learn about the other way round to find out the original function using the rules in integrating.

Integration – Inverse Process of Differentiation

We know that differentiation is the process of finding the derivative of the functions and integration is the process of finding the antiderivative of a function. So, these processes are inverse of each other. So we will say that integration is the inverse process of differentiation or the other way around. The integration questions in the integration are also called the anti-differentiation. In this process, we are given the derivative of a function and asked to seek out the function (i.e., primitive).

We also know that the differentiation for sin x is cos x.

It is mathematically written as:

(d/dx) sinx = cos x …(1)

Here, cos x is that the derivative of sin x. So, sin x is that the antiderivative of the function cos x. Any of the real numbers “C” is also considered as the constant function and the derivative for the constant function is also zero.

So, the equation (1) can be written as

(d/dx) (sinx + C)= cos x +0

(d/dx) (sinx + C)= cos x

Here “C” is the arbitrary constant or the constant for integration.

Generally, we can write the function as follow:

(d/dx) [F(x)+C] = f(x), where x belongs to the interval I.

To write the antiderivative for “f”, the integral symbol “∫” symbol is also introduced. The antiderivative for the function is written as ∫ f(x) dx. This also can be read as the indefinite integral of the function “f” with respect to x.

Therefore, the symbol of the antiderivative of a function (Integration) is:

y = ∫ f(x) dx

∫ f(x) dx = F(x) + C.