**<red> January 31st, 2024 <red>**

Maths is a subject that most students do not like because they don’t understand it well and more likely feel connected with it. Especially the class 10 maths formulas, the reason behind this is simple: students' base concepts are not solid. Having a solid base is required for everything to build perfectly.

Let’s take an example: when we build our house, we make the base should be solid so that house will stay intact in the storm also. The same rule applies to maths also. If we knew all the formulas and techniques to calculate the answer then solving answers would become easy.

Scoring good marks in maths is not tough. Although, in maths we get answers as per the right steps will calculate. So to increase your maths marks and understanding as well , read this article till last and you will get all your answers. We make it easy for all students to learn maths easily.

These are formulas which are required in every other chapter. So these are must learn formulas. Check the complete list of class 10 general formulas below, these are helpful to solve most of the maths questions.

- (a+b)
^{2}= a^{2}+ b^{2}+ 2ab - (a-b)
^{2}= a^{2}+ b^{2}– 2ab - (a+b) (a-b) = a
^{2}– b^{2} - (x + a)(x + b) = x
^{2}+ (a + b)x + ab - (x + a)(x – b) = x
^{2}+ (a – b)x – ab - (a + b)
^{3}= a^{3}+ b^{3}+ 3ab(a + b) - (a – b)
^{3}= a^{3}– b^{3}– 3ab(a – b) - (x – a)(x + b) = x
^{2}+ (b – a)x – ab - (x – a)(x – b) = x
^{2}– (a + b)x + ab - (x + y + z)
^{2}= x^{2}+ y^{2}+ z^{2}+ 2xy + 2yz + 2xz - (x + y – z)
^{2}= x^{2}+ y^{2}+ z^{2}+ 2xy – 2yz – 2xz - (x – y + z)
^{2}= x^{2}+ y^{2}+ z^{2}– 2xy – 2yz + 2xz - (x – y – z)
^{2}= x^{2}+ y^{2}+ z^{2}– 2xy + 2yz – 2xz - x
^{3}+ y^{3}+ z^{3}– 3xyz = (x + y + z)(x^{2}+ y^{2}+ z^{2}– xy – yz -xz) - x
^{2}+ y^{2}=½ [(x + y)^{2}+ (x – y)^{2}] - (x + a) (x + b) (x + c) = x
^{3}+ (a + b +c)x^{2}+ (ab + bc + ca)x + abc - x
^{3}+ y^{3}= (x + y) (x^{2}– xy + y^{2}) - x
^{3}– y^{3}= (x – y) (x^{2}+ xy + y^{2}) - x
^{2}+ y^{2}+ z^{2}-xy – yz – zx = ½ [(x-y)^{2}+ (y-z)^{2}+ (z-x)^{2}]

Download Free PDF of CBSE Class 10 Important Maths Formulas

Check all the chapter-wise formulas of class 10 maths. Students do not have to check any other article after reading this because you will get all the formulas in table and pdf form in the one place. Check all formulas below:

Chapter 1 real numbers mostly consist of very few formulas. Check all the formulas in the table given below.

All the formulas of chapter 3 pair of linear equations in two variables are given below.

- Linear equation in one variable: ax +b =0
- Linear equation in two variables: ax+ by+ c =0
- Linear equation in three variables: ax+ by+ cz= 0

Terms of sequence are denoted by a_{1} a_{2}, a_{3}, …………… an. An arithmetic progression is a sequence of numbers such that the difference between the consecutive terms is equal.

- a
_{n}= a + (n - 1) d, where an is the nth term. - S
_{n}= n/2 [2a + (n - 1)d]

Class 10 chapter 8 trigonometry basically covers three parts sine, cosine, and tangent and the opposite of these are sec, cosec and cot. Below are all the formulas used in trigonometry chapter.

Sin θ = Side opposite to angle θ/ Hypotenuse = Perpendicular/Hypotenuse = P/H

Cos θ = Adjacent side to angle θ/ Hypotenuse = Base/ Hypotenuse = B/H

Tan θ = Side opposite to angle θ/ Adjacent side to angle θ = P/B

Cosec θ = 1/ sin θ

Sec θ = 1/ cos θ

Cot = 1/ tan θ

Tan θ = sin θ/ cos θ

- sinθ = 1/ cosecθ
- sinθ.cosθ = 1
- cosθ = 1/secθ
- cosθ.secθ = 1
- tanθ = 1/cotθ
- tanθ.cotθ = 1
- sin(A + B) = sinA.cosB + cosA.sinB
- sin(A - B) = sinA.cosB - cosA.sinB
- cos(A + B) = cosA.cosB - sinA.sinB
- cos(A - B) = cosA.cosB + sinA.sinB
- tan(A + B) = (tanA + tanB)/ (1 - tanA.tanB)
- tan(A - B) = (tanA - tanB)/ (1 + tanA.tanB)

Other than chapter formulas, below are additional formulas which will be commonly used in all the questions of class 10 chapter 8 trigonometry. All the formulas are given below.

- sin(90° + θ) = cosθ
- cos(90° + θ) = sinθ
- tan(90° - θ) = - cotθ
- cot(90° + θ) = tanθ
- sec(90° + θ) = - cosecθ
- cosec(90° + θ) = secθ
- sin
^{2}θ + cos^{2}θ = 1 - sec
^{2}θ = 1 + tan^{2}θ for 0° ≤ θ < 90° - cosec
^{2}θ = 1 + cot^{2}θ for 0° ≤ θ ≤ 90°

All the formulas of chapter 10 area of circle have these two formulas which are given below.

- The tangent to a circle equation x
^{2}+ y^{2}= a^{2}for a line y = mx + c is given by the equation y = mx ± a √[1+ m^{2}]. - The tangent to a circle equation x
^{2}+ y^{2}= a^{2}at (a_{1},b_{1}) is xa_{1}+ yb_{1}= a_{2}

The common formulas of chapter 13 surface area and volume are given in the table below.

Chapter 14 Statistics mostly deal with finding mean, mode, median. Check all the statistics formulas in the table below.

The essential formula for the Probability chapter is:

P(E)= Number of outcome favourable/ Number of all possible outcomes of the experiment

We check class 10 maths formulas of maths and now it's time to remember them. But you must be asked why you need tips to remember the formulas. The maths formulas are a way to understand maths concepts in a concise way. They allow us to solve questions quickly and efficiently. Here some formulas are easy to remember and some are tough. Therefore, having a right way to remember them is required. Learning formulas and practicing them make our critical-thinking and problem solving skills better. Our overall performance improves.

Here are some tips to understand and remember class 10 all formulas of maths is an efficient way. Tips to remember formulas will definitely help in the long-term.

Mnemonics are a memory aid which are made of combinations such as words, letters, numbers and images. It helps in recalling formulas faster. Check the different ways below to see how you can make your own mnemonics. Here are the four ways to remember mnemonics better:

Pick the first letter of each word in the formulas to create a new word or phrase to easily remember the formulas. For example: the acronym for Pi (π) to 7 decimal places will be “May I have a large container of coffee?”. To recall this count the letters in each word – 3.1415926.

Create a rhyme or jingle that incorporates the different parts of the formula. For example: Pi (π) to 30 decimal places. The value of 3.1415926535897932384626433832795. Rhymes for this will be:

Now I, even I, would celebrate

In rhymes unapt, the great

Immortal Syracusan, rivaled nevermore,

Who in his wondrous lore,

Passed on before,

Left men his guidance

How to menstruate circles.

By using the mnemonics it becomes easier to recall formulas, which directly helps us to solve problems and make our calculation more efficient.

Break down will help to understand the components of the formula and how they relate to one another. Once you break down the formula in a meaningful way then it becomes easier to remember and recall it. Identifying the variables and practice will make things smooth and help to get the final result.

Repetition is a powerful way to learn formulas faster. The more you repeat a formula, the more likely you are to remember it. Repeat the formula multiple times until it becomes second nature.

These are some ways of repetition: quiz, flashcards, daily repetition, repeating formulas in different formats and daily practice. By repeating the formula regularly, it becomes more familiar and easier to recall in the long-term.

All the class 10 maths formulas are added above, students do not have to go anywhere in the search of formulas. Practice all these formulas to make your preparation better. When your preparation is strong, then you can solve questions quickly and accurately, and it will also help you to understand advanced level questions in maths.

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