Question

Suppose A and B are sets such that n open parentheses A close parentheses equals 3 and n open parentheses B close parentheses equals 5. Then

(a) n open parentheses A cross times B close parentheses =
Answer
[1 marks]

(b) n open parentheses B squared close parentheses=
Answer
[1 m

Answer 1

Answer:

When is matrix multiplication defined? In order for matrix multiplication to be defined, the number of columns in the first matrix must be equal to the number of rows in the second matrix.