Question

7. If yº? + 97 is divided by y + 1, the remainder is
a) 0
b) 1
c) 95
990
8. What is the degree of a zero polynomial?
?​

Answer 1

Matrix addition. If A and B are matrices of the same size, then they can be added. (This is similar to the restriction on adding vectors, namely, only vectors from the same space R n can be added; you cannot add a 2‐vector to a 3‐vector, for example.) If A = [aij] and B = [bij] are both m x n matrices, then their sum, C = A + B, is also an m x n matrix, and its entries are given by the formula

Thus, to find the entries of A + B, simply add the corresponding entries of A and B.

Example 1: Consider the following matrices:

Which two can be added? What is their sum?

Since only matrices of the same size can be added, only the sum F + H is defined (G cannot be added to either F or H). The sum