Top 50+ Solved Mathematical Tools for Economics 1 MCQ Questions Answer
Q. If a set S1 has n elements and S2 has m elements, how many ordered pairs can form in general?
a. m x n
b. m + n
c. m/n
d. none of these:
Q. A set which contains only one element is called
a. singleton set
b. finite set
c. proper set
d. none of these
Q. Two sets A and B are said to be …………………. sets if no element of A is in B and noelement of B is in A.
a. universal
b. disjoint
c. equivalent
d. none of these
Q. A matrix with equal number of rows and columns is called:
a. row matrix
b. column matrix
c. square matrix
d. none
Q. A square matrix in which all elements except those in diagonal are zero are called:
a. diagonal matrix
b. identity matrix
c. null matrix
d. none
Q. A diagonal matrix with all its diagonal elements equal to 1 is known as:
a. triangular matrix
b. zero matrix
c. identity matrix
d. none
Q. A matrix in which every element is zero is called
a. scalar matrix
b. null matrix
c. square matrix
d. inverse matrix
Q. Matrix obtained by inter changing the rows and columns is called ………… of a matrix
a. inverse
b. transpose
c. negative
d. none
Q. If A and B are square matrices such that AB = BA, then A and B are called…………..
a. additive
b. multiplicative
c. divisive
d. commutative