F10PracMidt2nosol - M341, Fall 07, 60180. Midterm 2,...

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Unformatted text preview: M341, Fall 07, 60180. Midterm 2, November 5 th . First Name .........................Last Name (PRINT)...............................- Calculators are authorized. Books, hand written notes or other documents are not authorized.- Show all your work. If you use a calculator, you are not waived of the intermediary computations that are still to be shown.- Explain every answer, either by a computation, or by using a theorem. Cor- rect results with no explanation will not be taken into account.- Freely use both sides of the sheets.- Put your name on any additional or unstapled sheet.- Good Luck. Problem 1. 1) Compute the determinant of the matrix: A = 3 2- 1 1 6 3 2- 4 . Is A invertible and why? 2) What is the adjoint or adjugate matrix of A ? (Show all your work. A correct expla- nation of what is a cofactor and what is the adjoint matrix will redeem small computational mistakes.) What is the inverse of A ?...
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F10PracMidt2nosol - M341, Fall 07, 60180. Midterm 2,...

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