matrix1 - ECON 331 Tutorial Homework for Week One SHORT...

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ECON 331 Tutorial Homework for Week One SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 1) Perform the indicated operations and simplify your answer: 3- 1 42 6- 8 + 2 4- 1 05 -4 3 1) 2) Perform the indicated operations and simplify your answer: 3 0 0 -1 2 -4 19 0- 3 2) 3) If A = 123 345 ; B = 2- 1- 2 1- 3- 2 , then find ( A + B ) T .3 ) 4) Find x , y , z , u , t , v such that x y z ut v + 2 123 456 = 83 5 981 4 4) 5) Perform the indicated operation and simplify your answer: 1- 1 0 23 4 1 0 5 1 -2 3 5) 6) Perform the indicated operation and simplify your answer: 2 4 310 6) 7) Perform the indicated operations and simplify your answer: 2 3 1 - 12 -3 0 1 0 7) 8) Use matrix multiplication to represent the system: 3 x + 2 y =2 4 x + y =5 8) 9) Use matrix multiplication to represent the system: 4 x +6 z =3 x - y + z =4 3 x + y - z =5 9) 10) Let A = 12 2 -1 . Find A 2 . 10) 11) Let A = 11 2- 1 ; B = 3- 5 -9 2
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This note was uploaded on 09/13/2009 for the course EOCNOMICS Econ 331 taught by Professor Kelvinkwainger during the Spring '09 term at Simon Fraser.

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matrix1 - ECON 331 Tutorial Homework for Week One SHORT...

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