NCERT explained

6th Maths NCERT Chapter 3

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Important Topics to Study:

1. Introduction to Matrices – Matrices are a powerful tool used to simplify tasks in various branches of mathematics, business, science, and more.

2. Matrix Definition – A matrix is an ordered rectangular array of numbers or functions, where elements/entries are the numbers within it.

3. Order of a Matrix – An m × n matrix has m rows and n columns, with elements arranged in a rectangular array.

4. Representation of Points in a Plane – Matrices can represent points in a plane (x, y) and vertices of a geometric figure like a quadrilateral.

Summary:

Students should focus on understanding how matrices are structured with rows and columns, their order, and how they can be used to represent data or points in a plane in various contexts like geometry and data analysis. Practicing examples involving matrix operations and order determination is essential for grasping the concepts effectively.

Define a matrix as per the formal definition given in the chapter.

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What is the significance of the order of a matrix?

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If a matrix has 8 elements, what are the possible orders it can have?

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Construct a 3 x 2 matrix with elements as given by 1/3 and -2.

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In the context of example 1 provided in the chapter, what does the entry in the third row and second column of the matrix representing the number of men and women workers in factories I, II, and III signify?

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