Fall 2011 Midterm1 Section 1 solutions

# Fall 2011 Midterm1 - MATH1850 Midterm 1 October 2011 2 1(3 marks each total 12 marks Answer each of the following questions in the space provided a

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MATH1850 Midterm 1 October, 2011 2 1. (3 marks each; total 12 marks) Answer each of the following questions in the space provided. a) Solve the linear system associated with the given augmented matrix. 6 1 0 0 0 2 0 0 1 0 1 4 2 5 1 b) Given 1 2 8 5 A and 0 6 3 4 B , verify that BA AB . c) Given that 1 0 1 2 A and 3 2 5 6 B , find the matrix X such that B AX .

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MATH1850 Midterm 1 October, 2011 3 d) Consider the chemical reaction O H x C x O x H C x 2 4 3 2 2 6 6 1 . Set up, in matrix form , the system of equations that you would need to solve to determine the values of 4 3 2 1 , , , x x x x to balance the equation. Set up only; do not solve! 2. (4 marks) Given the system b x A with 3 1 2 5 A and 9 4 b , use Cramer’s Rule to solve the system. You must use Cramer’s Rule…other methods will
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## This note was uploaded on 02/25/2012 for the course MATH 1850 taught by Professor Mihaibeligan during the Fall '09 term at UOIT.

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Fall 2011 Midterm1 - MATH1850 Midterm 1 October 2011 2 1(3 marks each total 12 marks Answer each of the following questions in the space provided a

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