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No, but it can be multiplied:

The new matrix is 3x3. EG:

100100 100 200

010010 x 010 = 020

001001 001 002

100

010

001

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Q: Can a matrix with dimensions of 3 X 6 be added to another matrix with dimensions of 6 X 3?
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Can a matrix with dimensions of 4 X 5 be added to another matrix with dimensions of 5 X 3?

No. Matrix addition (or subtraction) is defined only for matrices of the same dimensions.


How is the order of a matrix found?

The order of a matrix is another way of saying the dimensions of of a matrix. For a two dimensional matrix, the order could be 2 by 2, or 3 by 3, or 32 by 64.


Can a 3 x 2 matrix be added or subtracted with a 4 x 3 matrix?

No.Two matrices A and B can be added or subtracted if and only if they have the same number of rows and columns. That is a 3 x 2 matrix can be added or subtracted only with another 3 x 2 matrix.


What will be the dimensions of the new matrix formed by multiplying a 3 X 4 matrix and a 4 X 1 matrix?

3x1 matrix


What is the inverse of the matrix 3?

It is the matrix 1/3It is the matrix 1/3It is the matrix 1/3It is the matrix 1/3


How do you multiply 3x3 matrices by 1x3 or 3x1?

First of all, if we have any two matrices of sizes mxn and pxq where m, n, p and q are natural numbers, then we must have n=p to be able to multiply the matrices. The result is an mxq matrix. For example, a 3x1 matrix has m=3 and n=1. We can multiply it with any matrix of size 1xq. For example a 2x3 matrix can be multiplied with a 3x1 matrix which has 3 rows and 1 column and the result is a 2x1 matrix. (2x3) multiplies by (3x1) gives a (2x1) matrix. The easy way to remember this is write the dimension of Matrix A and then Matrix B. The two inner numbers must be the same and the two outer numbers are the dimensions of the matrix you have after multiplication. For example Let Matrix A have dimensions (axb) multiply it by matrix B which has dimensions (bxc) = the result is matrix of dimensions ac. Using the trick we would remind ourselves by writing (a,b)x(b,c)=(a,c). This is technically wrong because the numbers are dimensions, but it is just a method to help students remember how to do it. So, a 3x3 matrix can be multiplied by a 3x 1 but not by a 1,3 matrix. How do you do it? Just multiply each entry in the first row of A by each entry in the first column of B and add the products. Do the same for the next row etc. Many (or should I honestly say MOST) people use their fingers and go along row one and then down column one. The add the products of the entries as they do that. Then they do the same for row two and column two etc. It really does help!


Which type of matrix can be multiplied to another matrix and result in that matrix?

That is called the identity matrix. For example, (3,1,4)t x (1,1,1) = (3,1,4)t In this case (1,1,1) is the identity matrix. Another example is 5 11 1 0 1 11 x = 4 3 0 1 4 3 (You will have to imagine the brackets around the matrices as I did not know how to draw them in.) In this case 1 0 is the identity matrix. 0 1


Can a 3 X 4 matrix be multiplied by a 4 X 1 matrix?

Yes. If one matrix is p*q and another is r*s then they can be multiplied if and only if q = r and, in that case, the result is a p*s matrix.


Can a 3 X 5 matrix be multiplied by a 3 X 5 matrix?

No it can't !!!Matrix property: A matrix A of dimension [nxm] can be multiplied by another B of dimension [ txs] m=t.m=t => there exist a C = A.B of dimension [nxs].Observe that given [3x5] and [3x5], 5!=3(not equal to) so you can't!


How do you add 3 x 3 matrix?

You can only add a 3x3 matrix to another matrix of the same size. The reuslt is a 3x3 matrix where each element is the sum of the elements in the corresponding positions in the two summand matrices.Symbolically,if A = {aij} and B = {bij} then A + B = {aij + bij}where i=1,2,3 and j = 1,2,3


What is a 9 cell matrix?

3 x 3 matrix


what is the product of 44 and 23?

Hadamard product for a 3 × 3 matrix A with a 3 × 3 matrix B