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# CBSE Class 10

The CBSE course structure is designed to ensure that students do not face a lot of pressure and books are made interactive and interesting. A lot of fun activities are included in between the chapters to help students learn in a playful way. It makes the process of conveying knowledge to the students efficient and healthy. The subject matter is well designed which serves as a robust foundation for the class 11th and 12th along with upcoming competitive exams.

## CBSE Class 10 Subjects

Class 10 Board is a turning stage in a students education life. All the CBSE Class 10 subjects mentioned below are compulsory to study for students and the syllabus of all these subjects are prepared by the CBSE Board itself.
1. Maths
2. Science

## Download CBSE Class 10 Maths Sample Paper 2021 PDF

Click on the link below to get the Maths Class 10 Basic and Standard Sample papers below.

## What’s available

Class 10 Board is a turning stage in a students education life. All the CBSE Class 10 subjects mentioned below are compulsory to study for students and the syllabus of all these subjects are prepared by the CBSE Board itself.

## Previous Year Question Papers for CBSE Class 10

Class 10 CBSE previous year question papers are regarded as a worthy learning resource for the students while preparing for their Class 10 board exams. By practicing these previous year question papers the students can easily get an idea about the topics important for the examination point of view.

## CBSE Class 10 Syllabus

SpeedLabs team has separated out the Science syllabus for CBSE Class 10 and categorized it into Physics, Chemistry and Biology so that it can help as a foundation for later classes when it comes to understanding the individual subjects
Marks Number of Questions
1 Mark 06
2 Marks 06
3 Marks 10
4 Marks 08
4 Marks 08
Total 30

## Exam Structure

Unit No. Unit Marks
I Number Systems 06
II Algebra 20
III Coordinate Geometry 06
IV Geometry 15
V Trigonometry 12
VI Mensuration 10
VII Statistics and Probability 11
Total 80

## Important Formulas in Algebra

Here is a list of Algebraic formulas –
• a2 – b2 = (a – b)(a + b)
• (a + b)2 = a2 + 2ab + b2
• a2 + b2 = (a + b)2 – 2ab
• (a – b)2 = a2 – 2ab + b2
• (a + b + c)2 = a2 + b2 + c2 + 2ab + 2bc + 2ca
• (a – b – c)2 = a2 + b2 + c2 – 2ab + 2bc – 2ca
• (a + b)3 = a3 + 3a2b + 3ab2 + b3 ; (a + b)3 = a3 + b3 + 3ab(a + b)
• (a – b)3 = a3 – 3a2b + 3ab2 – b= a3 – b3 – 3ab(a – b)
• a3 – b3 = (a – b)(a2 + ab + b2)
• a3 + b3 = (a + b)(a2 – ab + b2)
• (a + b)4 = a4 + 4a3b + 6a2b2 + 4ab3 + b4
• (a – b)4 = a4 – 4a3b + 6a2b2 – 4ab3 + b4
• a4 – b4 = (a – b)(a + b)(a2 + b2)
• a5 – b5 = (a – b)(a4 + a3b + a2b2 + ab3 + b4)
• If n is a natural number an – bn = (a – b)(an-1 + an-2b+…+ bn-2a + bn-1)
• If n is even (n = 2k), an + bn = (a + b)(an-1 – an-2b +…+ bn-2a – bn-1)
• If n is odd (n = 2k + 1), an + bn = (a + b)(an-1 – an-2b +an-3b2…- bn-2a + bn-1)
• (a + b + c + …)2 = a2 + b2 + c2 + … + 2(ab + ac + bc + ….)
• Laws of Exponents (am)(an) = am+n ; (ab)m = ambm ; (am)n = amn
• Fractional Exponents a0 = 1 ; aman=amn$frac{a^{m}}{a^{n}} = a^{m-n}$ ; am$a^{m}$ = 1am$frac{1}{a^{-m}}$ ; am$a^{-m}$ = 1am$frac{1}{a^{m}}$

## CBSE Class 10

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