Top 150+ Solved Mathematics for Economic Analysis 1 MCQ Questions Answer
Q. Rectangular array of numbers, variables or parameters is called
a. set
b. exponents
c. matrix
d. function
Q. in a square matrix, the elements lie from left top to right bottom is
a. diagonal elements
b. row elements
c. column elements
d. triangular elements
Q. if all the elements below the leading diagonal are zero in a square matrix, it is
a. lower triangular matrix
b. identity matrix
c. inverse matrix
d. upper triangular matrix
Q. conformity condition for matrix addition is that matrices should be
a. square
b. same order
c. equal
d. proportional
Q. In matrix algebra (AB)C=A(BC) is
a. associative
b. commutative
c. distributive
d. none of the above
Q. In matrix expression of linear equation, AX=B, X denotes
a. coefficient matrix
b. constants
c. identity matrix
d. solution vector
Q. If in a matrix any two rows or columns are identical or proportional or linearly dependent, thedeterminant will be
a. equal
b. zero
c. unity
d. infinity
Q. Given the demand curve, P=20-0.2Q, the revenue curve will be
a. 20-0.2q
b. 10-.1q
c. 20q-0.2q
d. 20q-0.2q2
Q. The slope of isocost line is the ratio of
a. quantities
b. input prices
c. costs
d. product prices
Q. The line of linear equation should begin from
a. the origin
b. x axis
c. y axis
d. any of the above