# UNSOLVED ECO606 Assignment 1 Solution and Discussion

• SEMESTER FALL 2019
MATHEMATICAL ECONOMICS I (ECO606)
ASSIGNMENT NO.1
DUE DATE: DECEMBER 02, 2019
MARKS: 10
Question 01
A firm’s demand and supply functions are given below:
Qd 300P Qs 404P
Find out:
a) Equilibrium price
b) Equilibrium quantity demanded c) Equilibriumquantitysupplied
Question No. 02
Cofactors of any matrix A is called Adjugate matrix and can be shown as
AAA  11 12 13 
 A21 A22 A23  AAA
.
Find out all cofactors of the given matrix
1 0 1 A2 4 0
(Marks: a=2.5, b=1.5, c=1.5)
 31
32 33

3 5 6   .

`````` (Marks: 4.5) (0.5 for each cofactor) (Note: Keep in mind the positive and negative signs of cofactors)
``````

Note: Each part contains marks so, do each part separately and carefully. Step wise working in Math Type is required. Only answers will not be acceptable.
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