Multiplication of a Matrix by a Scalar

# Multiplication of a Matrix by a Scalar Video Lecture | Mathematics (Maths) Class 12 - JEE

## Mathematics (Maths) Class 12

204 videos|288 docs|139 tests

## FAQs on Multiplication of a Matrix by a Scalar Video Lecture - Mathematics (Maths) Class 12 - JEE

 1. What is scalar multiplication of a matrix?
Ans. Scalar multiplication of a matrix refers to the process of multiplying each element of the matrix by a scalar value. This means that every entry in the matrix is multiplied by the same scalar value.
 2. How is scalar multiplication performed?
Ans. To perform scalar multiplication, multiply each element of the matrix by the scalar value. For example, if we have a matrix A and a scalar value k, the result of scalar multiplication would be kA, where each element of A is multiplied by k.
 3. What is the significance of scalar multiplication in matrix operations?
Ans. Scalar multiplication is significant in matrix operations as it allows for scaling or resizing the matrix. It can be used to increase or decrease the magnitude of each element in the matrix, which can affect various mathematical operations and transformations.
 4. Can scalar multiplication change the dimensions of a matrix?
Ans. No, scalar multiplication does not change the dimensions of a matrix. It simply scales the values within the matrix without altering the number of rows or columns. The resulting matrix will have the same dimensions as the original matrix.
 5. What are some applications of scalar multiplication in real-life scenarios?
Ans. Scalar multiplication has various applications in real-life scenarios. For example, it can be used in computer graphics to scale images or objects. It is also used in engineering and physics to represent quantities such as force, displacement, or temperature that can be scaled up or down. Additionally, in finance, scalar multiplication can be used to calculate the effect of scaling investments or financial gains.

## Mathematics (Maths) Class 12

204 videos|288 docs|139 tests

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