MATH 2550 Midterm: MATH 2550 Iowa Exam 3formA

• School: University of Iowa
• Department: Mathematics
• Course: MATH 2550
• Professor: All

Document Summary

Suppose a is a 5 7 matrix. If rank of a = 4, then nullity of a : a. Suppose a = pdp 1 where d is a diagonal matrix. Suppose also the dii are the diagonal entries of d. if p = [ ~p1 ~p2 ~p3 ] and d11 = d33, then ~p1 + ~p3 is an eigenvector of a: a. 0: a. yes, b. no, c. none of the above. The vector~b is in cola if and only if a~v =~b has a solution: a. Is a = diagonalizable: a. yes, b. no, c. none of the above. Suppose a is a 3 4 matrix. Then nul a is a subspace of rk where k : a. Is a unit vector in the direction of . 0. 6: c. -0. 4, d. -0. 2, e. 0, f. 0. 2, g. 0. 4, h. 0. 6, i.