Top 80+ Solved Mathematics for Economic Analysis MCQ Questions Answer
Q. A determinant composed of all the first-order partial derivatives of a system of equations,arranged in ordered sequence is called
a. hessian determinant
b. jacobian determinant
c. discriminant
d. first order determinant
Q. If the value of the Jacobian determinant = 0, the equations are
a. functionally dependent
b. functionally independent
c. linearly independent
d. none of these
Q. If the value of the Jacobian determinant , the equations are
a. functionally dependent
b. functionally independent
c. linearly dependent
d. none of these
Q. A Jacobian determinant is used to test
a. linear functional dependence between equations
b. non-linear functional dependence between equations
c. both linear and non-linear functional dependence between equations
d. none of these
Q. A determinant composed of all the second-order partial derivatives, with the second-order direct partials on the principal diagonal and the second-order cross partials off theprincipal diagonal, and which is used to second order condition of optimization is called
a. jacobian determinant
b. hessian determinant
c. discriminant
d. none of these
Q. A mathematical statement setting two algebraic expressions equal to each otheris called
a. equation
b. hypothesis
c. inequality
d. all the above
Q. If in a matrix, the number if rows is the same as the number of columns, it iscalled
a. singular matrix
b. non-singular matrix
c. square matrix
d. column vector
Q. A square matrix A, such that A = A’, is called a
a. symmetric matrix
b. skew-symmetric matrix
c. singular matrix
d. rank of a matrix
Q. If the determinant formed by the elements of the matrix A is equal to zero, thenthe matrix is
a. skew symmetric
b. symmetric
c. singular
d. non-singular
Q. The matrix A multiplied by its inverse will be a
a. identity matrix
b. skew-symmetric matrix
c. idempotent matrix
d. adjoint of a matrix
Q. A inverse is defined only if A is a
a. square matrix
b. column vector
c. orthogonal matrix
d. skew-symmetric matrix
Q. the sufficient condition required for the matrix to possess inverse is that thematrix should be
a. square matrix
b. singular matrix
c. non-singular matrix
d. orthogonal matrix
Q. which method is used for finding inverse of a matrix
a. gauss elimination method
b. henrich standard method
c. co-factor method
d. both a & c
Q. A matrix with all elements zero other than all the diagonals is called
a. diagonal matrix
b. orthogonal matrix
c. unit matrix
d. column vector