Class 9 Maths - Important Identities (#class9Maths)(#eduvictors)

Class 9 Maths - Important Identities

(a+b)² = a² + 2ab+ b²

(a–b)² = a² –2ab + b²

a² – b² = (a+b)(a–b)

CBSE Class 9 Maths - Number Systems - Very Short Answer Based Questions (#class9Maths)(#cbsenotes)(#eduvictors)

CBSE Class 9  Maths - Number Systems - Very Short Answer Based Questions

Q1: Simplify $\sqrt[4]{32}$ ?

Answer: 

$\sqrt[4]{32} = \left ( 32 \right )^{\frac{1}{4}} $

$= \left ( 2^5 \right )^{\frac{1}{4}}$

$ = \left ( 2^4 . 2^1 \right )^{\frac{1}{4}} $

$= \left ( 2^4 \right )^{\frac{1}{4}}.(2)^{\frac{1}{4}}$

$= 2.\sqrt[4]{2}$

CBSE Class 9 - Maths - Real Numbers (MCQs) (#class9Maths)(#cbse2021)(#realnumbers)(#eduvictors)

CBSE Class 9 - Maths - Real Numbers (MCQs)

Choose the correct option in each of the following questions:

Q1. Which of the following is a rational number?

(a) 2√3

(b) π

(c) 0

(d) √3 + 1

Q2. Every point on a number line represents

(a) a rational number 

(b) a natural number 

(c) an irrational number 

(d) a real number

Class 9 Maths Annual Sample Question Paper (Set-1) 2020-21 (#eduvictors)(#class9Maths)(#cbsepapers)

Class 9 Maths Annual Sample Question Paper  (Set-1) 2020-21

Learning is a continual process. To improve scores, the best way is to learn and practice. Solving question papers help students to evaluate their knowledge and familarise with different types of question patterns being asked in examination. 

Eduvictors provides CBSE Previous Year Papers and Sample Question Papers for Class 9 Maths, Science, Social, English, Hindi and Sanskrit with/without solutions to help students in their board exam preparation.

1. CBSE New Pattern 15 Sample Paper Mathematics Class 9 for 2021 Exam with reduced Syllabus

Here attached the Maths Sample Question Paper (2020-2021).

CBSE Class 9 - Maths - Quadrilaterals (Worksheet-4) (#class9Maths)(#eduvictors)

Class 9 - Maths - Quadrilaterals (Worksheet-4)

Q1: ABCD is a parallelogram such that its diagonals are equal. What is the measure of ∠ABC?

Answer: Since diagonals are equal, it must be a rectangle or a square. ∴ ∠ABC = 90°

Q2: Is rhombus a kite or a parallelogram?

Answer: Both

Q3: In a parallelogram ABCD, if ∠C = 80° then what is the measure of ∠A? 

Answer: In a parallelogram, opposite angles are equal, ∴ ∠A = ∠C = 80°

CBSE Class 9 Maths - Circles - Quiz (#class9Maths)(#eduvictors)(#QuizOnCircles)

CBSE Class 9 Maths - Circles - Quiz 

MCQs (Q1 - Q10)

Q1. The diameter of a circle is also a 

   (a) secant 

   (b) tangent 

   (c) radius 

   (d) chord

Q2. An equilateral triangle ABC is inscribed in a circle with centre O.The measure of ∠BOC is 

  (a) 110⁰ 

  (b) 100⁰ 

  (c) 120⁰ 

  (d) 130⁰ 

CBSE Class 9 - Maths - Lines and Angles (Important Terms and Definitions)(#eduvictors)(#cbsenotes)(#class9Maths)

Lines and Angles (Important Terms and Definitions)

CBSE Class 9 - Maths

1. Two angles are called adjacent angles, if

    (i) they have the same vertex,

    (ii) they have a common arm and

    (iii) their non-common arms are on either side of the common arm.

2. Two adjacent angles are said to form a linear pair of angles, if their non-common arms are two opposite rays.

Class 9 - Mathematics - Triangles - Concept Points (#eduvictors)(#cbse2020)(#class9Maths)

Triangles - Concept Points

Class 9 - Mathematics

1. A plane figure bounded by three line segments is called a triangle.

2. A triangle can be:

- equilateral (all three sides are equal)

- isosceles (any two sides are equal)

- scalene (all three sides are unequal)

3. A triangle in which one of the angles measures  90° is called a right-angled triangle or simply a right triangle.

4. The sum of the angles of a triangle is always 180°

5. Two figures are congruent, if they are of same shape and same size. Congruent triangles are exactly identical.

CBSE Class 9 - Maths - Real Numbers - Problems on Rationalisation (Part-5)(#eduvictors)(#class9Maths)(#Class9RealNumbers)

CBSE Class 9 - Maths - Real Numbers - Problems on Rationalisation (Part-5)

The part-5 video gives a solution to a typical problem on rationalisation. This type of problem is commonly asked in question papers. The first step to solve this kind of problem is to rationalise each term individually. The video covers the solution for a long type of answer based question. In this series, we'll try to present solutions for more HOTS and typical problems for students of mathematics of class 9 For study Notes, Worksheets, Question Papers and Assignments for CBSE Class 6 - 12, do check our website www.eduvictors.com

CBSE Class 9 - Maths - Real Numbers - Problems on Rationalisation (Part-4)(#eduvictors)(#class9Maths)

CBSE Class 9 - Maths - Real Numbers - Problems on Rationalisation (Part-4)

The objective of rationalizing a denominator is to make it easier to understand what the quantity really is by removing irrationals from the denominators. The video series provides solutions for typical problems related to rationalization of irrational numbers covered under chapter real numbers. The video covers the solution for a long type of answer based question. In this series, we'll try to present solutions for more HOTS and typical problems for students of mathematics of class 9 For study Notes, Worksheets, Question Papers and Assignments for CBSE Class 6 - 12, do check our website www.eduvictors.com

CBSE Class 9 - Real Numbers - Problem on Rationalisation (Part-3)(#eduvictors)(#cbseClass9Maths)

CBSE Class 9 - Real Numbers - Problem on Rationalisation (Part-3)

The video series provides solutions for typical problems related to rationalization of irrational numbers covered under chapter real numbers. The video covers the solution for a long type of answer based question.

If the denominator of an expression is a surd, it can be reduced to an expression with rational denominator.

If the product of two surds is a rational number, then each one of them is a rationalizing factor of the other.

In this series, we'll try to present solutions for more HOTS and typical problems.

Class 9 - Maths - Real Numbers - Problems on Rationalization -2 For CBSE students (#eduvictors)(#cbseClass9Maths)(#rationalisation)

Class 9 - Maths - Real Numbers - Problems on Rationalization (Part-2) For CBSE students

The video series provides solutions for typical problems related to rationalization of irrational numbers covered under chapter real numbers. The video covers the solution for a long type of answer based question.


If the product of two irrational numbers is a rational number, then each number is called the rationalization factor. The process of multiplying an irrational number by its rationalising factor is called rationalisation. In this series, we'll try to present solutions for more HOTS and typical problems.

 

CBSE Class 9 Maths - Real Numbers - Problems on Rationalization -1 (#eduvictors)(#cbseClass9Maths)(#Rationalisation)(#RealNumbers)

Real Numbers - Problems on Rationalization -1 CBSE Class 9 Maths

See the solution below:

CBSE Class 9 and 10 Syllabus for Academic Year 2020-21(#eduvictors)(#cbse)

CBSE Class 9 and 10 Syllabus for Academic Year 2020-21

Central Board of Secondary Education (CBSE) has published syllabus for the academic year (2020-2021). The syllabus or curriculum alludes to the exercises and scholastic substance to be instructed to a student in the school. In experimental terms, it might be viewed as the aggregate of  an arranged arrangement of instructive encounters gave to a student by a school. It  envelops general goals of learning, courses of study, subject-wise  instructional goals and substance, academic practices and evaluation rules.

The syllabus provided by CBSE is largely based on National Curriculum Structure 2005 (published by NCERT) and looks to give chances to understudies to accomplish greatness in learning.

Here are the pdf links for important subjects in Class 9 and Class 10:

CBSE Class 9 Maths Chapter: Number Systems Quiz (#eduvictors) (#cbse)(#class9Maths)

CBSE Class 9 Maths Chapter: Number Systems Quiz 

A maths quiz for Class 9 Students to assess your understanding about Number systems.

CBSE Class 9 - Mathematics Annual Sample Question Paper Set-2 (2019-20)(#cbsepapers)(#eduvictors)

CBSE Class 9 - Mathematics
 Annual Sample Question Paper
Set-2 (2019-20) 

Getting good marks is very important for students of class 9. For this one must practice and attempt sample question papers within time limits.

Here follows a sample question paper on Maths subject to assess your knowledge about the subject.

For studying you may refer following help guides:

1. Class 9 Mathematics - RD Sharma (2019-20) Bestseller
2. Xam Idea Complete Course Class 9 Mathematics (2019-20)

CBSE Class 9 - Maths - Very Short Answer Based Questions (Solved Worksheet-1) (#eduvictors)(#cbseClass9Maths)

CBSE Class 9 - Maths - Very Short Answer Based Questions 

(Solved Worksheet-1)

Q1: .Find any two irrational numbers between 0.1 and 0.12


Q2:  Simplify : √72 + √800 - √18.


Q3: What is the degree of a zero polynomial?


Q4: What is the degree of polynomial √3 ?


Q5: Factorise x² - 3x


Q6: Factorise x³ - 8


Q7:  Is 0x + 0y + c = 0, a linear equation?

CBSE Class 9 - Mathematics Yearly (Olympiad) Sample Question Paper (2019-20)(#eduvictors)(#cbseClass9Maths)

CBSE Class 9 - Mathematics
 Yearly (Olympiad) Sample Question Paper
 (2019-20) 

Getting good marks is very important for students of class 9. For this one must practice and attempt sample question papers within time limits.

Here follows a sample question paper on Maths subject to assess your knowledge about the subject.

For studying you may refer following help guides:

1. Class 9 Mathematics - RD Sharma (2019-20) Bestseller
2. Xam Idea Complete Course Class 9 Mathematics (2019-20)

CBSE Class 7 Maths - Chapter 9 - Rational Numbers (Worksheet)(#class7Maths)(#eduvictors)

Chapter 9 - Rational Numbers (Worksheet)

CBSE Class 7 Maths

Fill in the blanks

1. A rational number is a number that can be written in the form p/q, where p and q are ________ and q ____ 0.


2. The ________ of a rational number can never be zero.


3. The rational number _______ is neither negative nor positive.

CBSE Class 9 Maths - Coordinate Geometry - Concept Points (#class9Maths)(#eduvictors)

Coordinate Geometry - Concept PointsClass 9 Maths

1. The system used for describing the position of a point in a plane is called Cartesian system.

2. To locate the position of a point in a plane, we require two perpendicular lines.

3. The plane is called the Cartesian or coordinate plane and the lines are called the coordinate axes.