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Exercises. Addition and subtraction of matrices.


Rules. Addition and subtraction of matrices.

You can add and subtract matrices of same size, as result you get a matrix of the same size.

Addition of matrices (sum of matrices) A + B is the operation of finding the matrix C, all of whose elements are equal to the sum of pairwise all relevant elements of the matrices A and B, that is, each element of the matrix C is

сi,j = ai,j + bi,j

Subtraction of matrices (difference of matrices) A - B is the operation of finding the matrix C, all of whose elements are pairwise differences of all relevant elements of the matrices A and B, that is, each element of the matrix C is

сi,j = ai,j - bi,j

Exercises. Addition of two matrices (sum of matrices) and the subtraction of two matrices (difference of matrices).

Given two matrices A and B:

A =
-17
-9
3
17
12
-18
3
-11
14

B =
-5
19
18
3
-7
-11
-6
12
-11

Find the value of the matrix: C = A
+
B

Select the size of the matrix С:
Number of rows:
Number of columns:

Write the answer and press the button "Submit".


C = ...


You have to press the "Next task" button to move to the next task.
Attention!!! After press "Next task" you can not return to previous exercise!



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