Unformatted text preview: Econ 1540 both sections Extra Homework on Ch 4 and Â§__ of text_(_Matrices and Determinants) .; l. LetmatrixA= CÂ» l-
Câ€˜ 2. Find ALL matrices B that commute with A in multiplication. 2. Find â€œ126.96.36.199.! matrices X such that
AX=B Where A is the matrix in (I) above and B is
' Â«:5 C? i (9 0 2 ,1 3. Find the value(s) ofx that makes matrix A below singular 4. A matrix is said to be orthogonal if its transpose is equal to its inverse. Show that matrix A below is
orthogonal. A: \ 0 C
Câ€˜ \ C Note: Solutions will be posted next week. ...
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- Spring '11