1 1 a) Let A = 1 -1 -1 1 (i) Compute the value of det(A). (ii) For what values of x will the matrix be singular? b) Write down the quadratic form that corresponds to the following matrix. (3 2 4 2 -1 -3 \4 -3 1

1 1 a) Let A = 1 -1 -1 1 (i) Compute the value of det(A). (ii) For what values of x will the matrix be singular? b) Write down the quadratic form that corresponds to the following matrix. (3 2 4 2 -1 -3 \4 -3 1

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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Question

1
1
a) Let A =
1
-1
-1
1
(i)
Compute the value of det (A).
(ii)
For what values of x will the matrix be singular?
b) Write down the quadratic form that corresponds to the following matrix.
2
4
2
-1
-3
.4
-3
1

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