homework_5 - THE CHINESE UNIVERSITY OF HONG KONG Department...

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Unformatted text preview: THE CHINESE UNIVERSITY OF HONG KONG Department of Mathematics MAT2310 Linear Algebra and Applications (Fall 2007) Homework 5 Name: Student No.: Class: Final Result: I acknowledge that I am aware of University policy and regulations on hon- esty in academic work, and of the disciplinary guidelines and procedures appli- cable to breaches of such policy and regulations, as contained in the website http://www.cuhk.edu.hk/policy/academichonesty/ Signature Date Answer all the questions. 1. Let y 1 = 1 , y 2 = 1 1 , y 3 = 1 1 1 , and L be the linear operator on R 3 defined by L ( c 1 y 1 + c 2 y 2 + c 3 y 3 ) = ( c 1 + c 2 + c 3 ) y 1 + (2 c 1 + c 3 ) y 2- (2 c 2 + c 3 ) y 3 . (a) Find a matrix representing L with respect to the ordered basis [ y 1 y 2 y 3 ]. (b) Write the vector x = 1 2 3 as a linear combination of y 1 , y 2 , y 3 and use the matrix from part (a) to determine L ( x )....
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This note was uploaded on 05/18/2010 for the course MATHEMATIC MAT2310 taught by Professor Dr.jeffchak-fuwong during the Spring '06 term at CUHK.

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homework_5 - THE CHINESE UNIVERSITY OF HONG KONG Department...

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