Top 80+ Solved Mathematics for Economic Analysis MCQ Questions Answer
Q. For any square matrix A of order ‘n’, A(Adj A) is equal to
a. (adj a)a
b. determinant a
c. rank of a
d. both a & b
Q. Matrix multiplication does not satisfy --------- law
a. associative
b. distributive
c. commutative
d. none of the above
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. The set of all elements which belong to set B but do not belong to set A is
a. aub
b. a-b
c. b-a
d. acb
Q. If the matrix CxC =C, the matrix C is
a. square matrix
b. triangular matrix
c. idempotent matrix
d. identity matrix
Q. Maximum number of linearly independent rows and columns of a matrix iscalled
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
Q. If the relation is defined as from A to B, then relation from B to A
a. relation
b. inverse relation
c. function
d. binary