Top 150+ Solved Mathematics for Economic Analysis 1 MCQ Questions Answer
Q. the elements in the horizontal line in a matrix is called
a. columns
b. rows
c. elements
d. diagonal
Q. If A=At , then A is
a. symmetric matrix
b. skew symmetric matrix
c. identity matrix
d. orthogonal matrix
Q. The set of “stars in the sky” is an example of
a. countable set
b. infinite set
c. finite set
d. unit set
Q. Ordered pairs of two sets are called
a. elements
b. function
c. cartesian product
d. none of the above
Q. AB=BA=I, then B is said to be -------- matrix of A
a. adjoint
b. inverse
c. determinant
d. cofactor
Q. Determinant of triangular matrix is the product of
a. diagonal elements
b. off-diagonal elements
c. rows
d. columns
Q. If the number of elements of the two sets are equal, then they are called
a. equal set
b. equivalent set
c. order set
d. subset
Q. Maximum number of linearly independent rows and columns of a matrix is called
a. rank
b. adjoint
c. determinant
d. inverse
Q. Determinant of a 3X3 square matrix is called ----- determinant
a. first order
b. second order
c. third order
d. fourth order
Q. The set consisting of all the elements which belong to A as well as B is called
a. union
b. intersection
c. complement
d. partition