Maths Formulas: List of Important Formulas

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Maths Formulas include the formulas related to real numbers, polynomials, quadratic equations, triangles, circles, statistics, probability etc. Formulas can be quite hard to memorise. But it becomes easier if we know the process of deriving formulas from basic concept. Thus it is very important to understand the basic concepts first before jumping into identities and formulas. These formulas make it easy to solve problems quickly especially in CBSE Class 10 and Class 12 Board Examinations.

Read More: Important Formulas and Examples


List of Important Maths Formulas

Mathematics has varied sub-field ranging from the number system to complex calculus. Each topic has its one set of formulas which make it easy to solve the problems. Different topics in mathematics and respective formulas are below.

Number System Formulas

Number system is the study of different types of numbers. Whole numbers, natural numbers, real numbers, rational numbers, irrational numbers, imaginary numbers are all part of the number system. Some of the important formulas from this topic include:


Comparing Quantities Formulas

In this topic, two quantities are compared by means of percentage, ratio and proportions. Profit, loss, simple interest and compound interest also come under this topic.


​Algebra Formulas

Algebra is known for its identities. Without algebraic identities, it would be troublesome to solve equations. Some of the important formulas in this topic are:


​Coordinate Geometry Formulas

Coordinate geometry is a subset of algebra and geometry together where two-dimensional figures are represented in terms of algebraic equations. Some of the formulas in this topic include:


​Vector Algebra Formulas

Vector algebra is again a subset of algebra that takes into account the concept of imaginary numbers. Some of the important formulas include:


​Geometry Formulas

Geometry is the study of shapes. Various physical quantities such as areas, perimeter, surface areas and volumes are calculated using formulas in geometry. Some of the important formulas include:


​Trigonometry Formulas

Trigonometry is the study of heights and distances using the six trigonometric functions. Some of the important formulas include:


Statistics Formulas

Statistics is a field of mathematics that emerged out of data handling. Formulas are used to find measures such as mean, median and mode. Some of the important formulas include:


​Logarithm Formulas

Logarithm is the inverse function to exponentiation. Some of the important formulas include:


​Calculus Formulas

Calculus is the field of mathematics that deals with continuous change. Some of the important formulas include:


Probability Formulas

Probability is the study of the possibility or likely event of something happening. Some of the important formulas include:


​Sets and Functions Formulas

Sets and Function chapter deals with the grouping of elements. A function is the mapping of elements from one set to another. Some of the important formulas include:


​Matrix Formulas

Matrix is the rectangular arrangement of rows and columns over which mathematical operations are performed. Some of the important formulas include:


​Permutation and Combination Formulas

Permutation is the arrangement of elements and combination is the selection of elements from different groups to create another group. Some of the important formulas include:


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CBSE CLASS XII Related Questions

  • 1.

    A rectangle of perimeter \(24\) cm is revolved along one of its sides to sweep out a cylinder of maximum volume. Find the dimensions of the rectangle. 


      • 2.

        Smoking increases the risk of lung problems. A study revealed that 170 in 1000 males who smoke develop lung complications, while 120 out of 1000 females who smoke develop lung related problems. In a colony, 50 people were found to be smokers of which 30 are males. A person is selected at random from these 50 people and tested for lung related problems. Based on the given information answer the following questions: 

        (i) What is the probability that selected person is a female? 
        (ii) If a male person is selected, what is the probability that he will not be suffering from lung problems? 
        (iii)(a) A person selected at random is detected with lung complications. Find the probability that selected person is a female. 
        OR 
        (iii)(b) A person selected at random is not having lung problems. Find the probability that the person is a male. 
         


          • 3.
            Find the general solution of the differential equation \[ y\log y\,\frac{dx}{dy}+x=\frac{2}{y}. \]


              • 4.
                Mother, Father and Son line up at random for a family picture. Let events \(E\): Son on one end and \(F\): Father in the middle. Find \(P(E/F)\).


                  • 5.
                    Find the domain of \(p(x)=\sin^{-1}(1-2x^2)\). Hence, find the value of \(x\) for which \(p(x)=\frac{\pi}{6}\). Also, write the range of \(2p(x)+\frac{\pi}{2}\).


                      • 6.
                        If \[ P = \begin{bmatrix} 1 & -1 & 0 \\ 2 & 3 & 4 \\ 0 & 1 & 2 \end{bmatrix} \quad \text{and} \quad Q = \begin{bmatrix} 2 & 2 & -4 \\ -4 & 2 & -4 \\ 1 & -1 & 5 \end{bmatrix} \] find \( QP \) and hence solve the following system of equations using matrix method:
                        \[ x - y = 3,\quad 2x + 3y + 4z = 13,\quad y + 2z = 7 \]

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