# Mathematics For Economic Analysis Set 3

This set of Mathematics for Economic Analysis Multiple Choice Questions & Answers (MCQs) focuses on Mathematics For Economic Analysis Set 3

Q1 | A mathematical statement setting two algebraic expressions equal to each otheris called
Q2 | An equation in which all variables are raised to the first power is known as
Q3 | The slope of a horizontal line is
Q4 | The slope of a vertical line is
Q5 | An iso-cost line represents
Q6 | (A+B)+C = A+(B+C). This law of matrices is known as
Q7 | (A+B) = (B+A). this law of matrices is known as
Q8 | k (A+B) = kA + kB. This law of matrices is known as
Q9 | If in a matrix, the number if rows is the same as the number of columns, it iscalled
Q10 | In a matrix, if there is only one row but any number of columns, it is called
Q11 | If all the elements of a matrix of any order are zero, it is called
Q12 | A square matrix with 1’s in its principal diagonal and zeros everywhere else is
Q13 | A square matrix A, such that A = A’, is called a
Q14 | If the determinant formed by the elements of the matrix A is equal to zero, thenthe matrix is
Q15 | The matrix A multiplied by its inverse will be a
Q16 | A inverse is defined only if A is a
Q17 | the sufficient condition required for the matrix to possess inverse is that thematrix should be
Q18 | which method is used for finding inverse of a matrix
Q19 | A matrix with all elements zero other than all the diagonals is called
Q20 | Find the co-factor A23 of the matrix A =
Q21 | A diagonal matrix whose diagonal elements are equal is called
Q22 | A square matrix A of order mxn is called an upper triangular matrix if aij = ofor all
Q23 | If A & B are symmetric matrices, then A + B is
Q24 | For any square matrix A of order ‘n’, A +AT is
Q25 | For any square matrix A of order ‘n’, A - AT is