## Matrices Formula for CBSE Class 12 Maths - Free PDF Download

## FAQs on CBSE Class 12 Maths Chapter 3 Important Formulas: Matrices

1. What are the Basic Properties of a Matrix Multiplication?

Properties of matrix multiplication:

Generally, matrix multiplication doesn’t follow commutative law.

AB ≠ BA

Generally, associative law is followed by matrix multiplication.

Multiplicative identity exists for matrix multiplication. If I is the multiplicative identity then,

A . I = I . A

Distributive law is followed by multiplication of matrices.

X ( N + Q ) = XN + XQ

2. What is the Multiplication of a Matrix by a Scalar?

If you are searching for matrices all formulas, then in the multiplication section you will get two types. First will be multiplication of a matrix by a scalar and the second one will be multiplication of a matrix by a matrix. First, we will see the multiplication of a matrix by a scalar.

Suppose a matrix A is there then if you multiply the matrix A by a scalar k, then you have to multiply each and every element of the matrix A with k.

if A and B are two matrices then,

j(A + B) = jA + jB

(k + j)A = kA + jA (k and j are constant)

kj(A) = jk(A)

3. Where can I Find the List of Matrices of all Formulas Class 12?

All formulas of Matrices Class 12 are available at the official site of Vedantu. You will be made available with the Notes and list of formulas for Class 12 Maths Matrices. Candidates ambitious to qualify the Class 12th with excellent scores can subscribe to Vedantu for a smart preparation plan.