For 39, (a) find n such that rowspace(A) is a subspace of Rn, and determine a basis for rowspace(A); (b) find m such that colspace(A) is a subspace of Rm, and determine a basis for colspace(A)

4.1 Homework/Quiz due Tuesday February 2, 2016 Math 121 Section 4.1 Techniques for Finding Derivatives Jan. 28, 2016 We know how to find the derivative of a function using '( ) f (a+h)−f (a) f x =lim ¿h→0 h (provided the limit exists)....