Question: Let A and B be given in exercises. Determine (a) 3A, (b) (c)½B.
Exercises : Given the matrix
(a) Determine the (i) 1-2 entry, (ii) 2-1 entry, (iii) 1-3 entry, (iv) 1-4 entry, (v) 3-1 entry.
(b) Write the first row as a row vector,
(c) Write the fourth column as a column vector.
(d) What is the dimension of A?
Exercises: Given the matrix
(a) What is its dimension?
(b) Determine the sum of the 1-2 and 4-3 entries.
(c) Write the third and fourth columns as column vectors and determine their sum