For each question: - Clearly state: True or False - If True, provide a concise explanation - If False, provide an explicit counterexample 1. Let Ai = b be a consistent, inhomogeneous system of linear equations. A solution to the system is given by i = A-5 %3D
Quadratic Equation
When it comes to the concept of polynomial equations, quadratic equations can be said to be a special case. What does solving a quadratic equation mean? We will understand the quadratics and their types once we are familiar with the polynomial equations and their types.
Demand and Supply Function
The concept of demand and supply is important for various factors. One of them is studying and evaluating the condition of an economy within a given period of time. The analysis or evaluation of the demand side factors are important for the suppliers to understand the consumer behavior. The evaluation of supply side factors is important for the consumers in order to understand that what kind of combination of goods or what kind of goods and services he or she should consume in order to maximize his utility and minimize the cost. Therefore, in microeconomics both of these concepts are extremely important in order to have an idea that what exactly is going on in the economy.
![For each question:
- Clearly state: True or False
- If True, provide a concise explanation
- If False, provide an explicit counterexample
1. Let A = b be a consistent, inhomogeneous system of linear equations. A solution to the system
is given by i = A-
2. Let S, T C R" with S being a proper subset of T. If span(S) = span(T), then T is linearly
dependent.
3. Let S C P(R) be the set of all even degree polynomials. Then S forms a subspace of P(R).
4. Consider two maps S, T : R" R". The composition SoT is a linear map if and only if both
S and T are linear maps
5. Any invertible 3 x 3 real matrix M is a matrix of change of basis [C]g for some bases B and C.
6. Let W be a finite dimensional subspace of an inner product space V. For each w e W, there
exists a unique v EV such that w is an orthogonal projection of v on W.
7. Let A be a 4 x 4 matrix such that the homogeneous equation Af = õ has general solution
i = Xữ for some non-zero vector TER. Then, rank(A) = 3.
%3D
8. Let V be a inner product space and let a e V be a non-zero vector. The subset U defined by
U = {ie V(F, ā) = 0}
is a subspace of V
9. If A ER is a common eigenvalue of two n x n matrices A and B, then A is also an eigenvalue
of A+ B.
10. If a square matrix M has a stable distribution, then it must be regular](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F861e3ce5-09b0-437a-ad8c-3c26f27a57e3%2F37670cf9-0654-4572-a8ed-0db4c97862ca%2Fo2oynxo_processed.jpeg&w=3840&q=75)
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