1. consider the following matrix: [1 a = 1-2 11 2 3 4 1 4 0 1 1 2 01 2 2] find a basis for its null space and a basis for its column space. what is the rank and nullity of the matrix? what is rank(a)+nullity(a)?

my best guesses would have to be either 4.5 or 2. p.s. if they're wrong, i'm so sorry for giving you the wrong answer.

the answer is a) a healthy economy because it results from a steady rise in demand.

answer

the correct answer is option c

explanation

we have

we simplify as follows;