. Let the matrix below act on C2. Find the eigenvalues and a basis for each eigenspace in C2. [ ] 1 -2 3 1 -2 The eigenvalues of are 3 (Type an exact answer, using radicals and i as needed. Use a comma to separate answers as needed.) b. Let the matrix below act on C?. Find the eigenvalues and a basis for each eigenspace in C2. 15 -5 1 15 The eigenvalues of are (Type an exact answer, using radicals and i as needed. Use a comma to separate answers as needed.)