7. What is the sin(90-x)? A. 0.3
B. 0.6
C. 0.9
D. 0.4
E. 0.2
F. 0.5

after trying it my self I got .2 but I'm not sure

To diagonalize an nxn matrix a means to find an invertible matrix p and a diagonal matrix d such that a pdp d p ap or [1 3 dh epap 3 let a=-3 -5 -3 3 3 1 step 1: find the eigenvalues of matrix a "2's" step 2: find the corresponding eigenvectors of a step 3: createp from eigenvectors in step 2 step 4 create d with matching eigenvalues.