In an economics text 1 1 we find the following system: [ − R 1 R 1 − ( 1 − α ) α 1 − α − ( 1 − α ) 2 R 2 − R 2 − ( 1 − α ) 2 α ] [ d x 1 d y 1 d p ] = [ 0 0 − R 2 d e 2 ] . Solve for d x 1 , d y 1 , and dp. In your answer, you mayrefer to the determinant of the coefficient matrix as D.(You need not compute D.) The quantities R 1 , R 2 , and D are positive, and α is between zero and one. If d e 2 is positive, what can you say about the signs of d y 1 and dp?
In an economics text 1 1 we find the following system: [ − R 1 R 1 − ( 1 − α ) α 1 − α − ( 1 − α ) 2 R 2 − R 2 − ( 1 − α ) 2 α ] [ d x 1 d y 1 d p ] = [ 0 0 − R 2 d e 2 ] . Solve for d x 1 , d y 1 , and dp. In your answer, you mayrefer to the determinant of the coefficient matrix as D.(You need not compute D.) The quantities R 1 , R 2 , and D are positive, and α is between zero and one. If d e 2 is positive, what can you say about the signs of d y 1 and dp?
Solution Summary: The author explains how to find the solution for the given system.
In an economics text11 we find the following system:
[
−
R
1
R
1
−
(
1
−
α
)
α
1
−
α
−
(
1
−
α
)
2
R
2
−
R
2
−
(
1
−
α
)
2
α
]
[
d
x
1
d
y
1
d
p
]
=
[
0
0
−
R
2
d
e
2
]
.
Solve for
d
x
1
,
d
y
1
, and dp. In your answer, you mayrefer to the determinant of the coefficient matrix as D.(You need not compute D.) The quantities
R
1
,
R
2
, and D are positive, and
α
is between zero and one. If
d
e
2
is positive, what can you say about the signs of
d
y
1
and dp?
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HOW TO FIND DETERMINANT OF 2X2 & 3X3 MATRICES?/MATRICES AND DETERMINANTS CLASS XII 12 CBSE; Author: Neha Agrawal Mathematically Inclined;https://www.youtube.com/watch?v=bnaKGsLYJvQ;License: Standard YouTube License, CC-BY