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Free MCQs & Online Quiz Practice for Exams
Review Mode Quiz ModeQ: The solution set of |-x| = 0 is ___________
Answer: C. [0]
Q: The solution set of 5-3x = -4 is_______
Answer: A. [3]
Q: matrix [0 0 ; 0 0] is :
Answer: C. an identity matrix w.r.t addition
Q: The matrix [4 0 ; 0 -12] is:
Answer: C. a diagonal matrix
Q: if A = [-1 -2 ; 3 1], then adj A is equal to :
Answer: B. [1 2 ; -3 -1]
Q: If A = [ 2 3 ; 3 4], then A⁻¹equals
Answer: D. [ -4 3 ; 3 -2]
Q: For what value of d is the 2x2 matrix [ 5 1.5 ; 2 d], NOT inversible ?
Answer: C. 0.6
Q: Suppose A and B are 2x5 matrices, Which of the following are the dimensions of the matrix A+B?
Answer: A. 2x5
Q: Which of the following is the multiplicative inverse of [1 2 ; 0 1]
Answer: B. [1 -2 ; 0 1]
Q: Evaluate the determinant of the matrix [ 4 -1 ; -9 2]
Answer: C. -1
Q: The additive inverse of √5 is
Answer: A. -√5
Q: 2(3+4)=2x3+2x4, here the property used is
Answer: C. Distributive
Q: √-1 x √-1 =
Answer: C. -1
Q: Which of the following represents numbers greater than -3 but less than 6?
Answer: C. { x :-3<x<6}
Q: If n=8 and 16x 2ᵐ = 4ⁿ⁻⁸ , then m = ?
Answer: A. -4
Q: (i). (-i) = ?
Answer: A. 1
Q: The multiplicative identity of real numbers is:
Answer: B. 1
Q: 0 is _____
Answer: C. neither positive nor negative
Q: For i=√-1 , if 3i(2+5i) = x+6i, then x = ?
Answer: B. -15
Q: √0 = ?
Answer: A. 0