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Discrete Mathematics Test 3

This Test will cover complete Discrete Maths with very important questions, starting off from basics to advanced level.
Q. Let X be a positive integer and matrix A = matrix discrete mathematics If |adj (A)| = X6. Then the value of X will be __________.
Q. The maximum no. of different possible non-zero entries in a skew-symmetric matrix of order 11 is __________.
Q. The value of the determinant determinant of matrix discrete mathematics is __________.
Q. The sum of minimum and maximum value of a determinant of second order whose elements are either 0 or 1 is equal to __________.

Q. If A = matrix discrete mathematics then the value of the determinant of [ A2+2A-3I ] will be equal to __________.
Q. For a matrix A = matrix discrete mathematics one of the eigen value is +3 then which of the following is an eigen vector?
Q. For what values of α and β, the following simultaneous equations have an infinite no. of solutions?
X + Y + Z = 5
X + 3Y + 3Z = 9
X + 2Y + αZ = β
Q. For the homogenous system of linear equation, AX = 0, if the rank of matrix A is equal to no. of unknowns variable then it has __________.
Q. Let a matrix A = matrix discrete mathematics and it is given that |A| = 0 then value of abc can be __________.

Q. Which of the following option is correct?
S1: Sum of the eigen values of a matrix = trace of a matrix.
S2: For singular matrices, atleast one of the eigen value = 0.
S3: The determinant of involutory matrix is either +1 or -1.
Q. The trace of a matrix is 9 and the determinant of that matrix is 24. Then the eigen values for that matrix will be __________.
Q. A is a 4 x 5 real matrix and AX = B is an inconsistent system of equation. The highest possible rank of A will be __________.
Q. Let a matrix A = matrix discrete mathematics has one eigen value, which is 4. The sum of other two eigen values is __________.
Q. One of the eigen vector of the matrix A = matrix discrete mathematics is __________.
Q. The eigen vectors of matrix A = matrix discrete mathematics are __________.

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