Number System MCQs

By: Prof. Dr. Fazal Rehman | Last updated: September 28, 2024

Number System MCQs

1: If z1 = 2 + ι, z2 = 1 + 3ι, then ι Re ( z1 – z2 ) =. Select the correct option . A. 2 B. 1 C. ι D. 2 ι E. All of these F. Both A and B
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C
2:Given function is equal to (A ∪ B) ∪ C = A. A ∪ (B ∪ C ) B. A ∩ (B ∪ C ) C. A ∪ (B ∪ C ) D. Π E. All of these F. Both A and B
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A
3: { – 3 n : n ε Z } IS an abelian group under ______________. Select anyone A. subtraction B. addition C. division D. multiplication E. E. All of these F. F. Both A and B
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B
4: A function from A to B is called onto function if its range. Select the correct option. A. A B. B C. Neither A nor B D. Both A and B E. All of these F. Both C and B
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B
5: Function f = { (x,Y) | Y = mx + c } is called ____________. A. linear function B. quadratic function C. constant function D. cubic function E. All of these F. Both A and B
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A
6: * is said to be commutative in A for all a, b ε A. select the correct option. A. a * b ≠ b * a B. a + b = b + a C. a * b = b * a D. a – b = b – a E. All of these F. Both A and B
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C
7: Graph of the linear function represents which of the following. A. parabola B. triangle C. circle D. straight line E. All of these F. Both A and B
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D
8: If G = { 1, -1, ι, – ι } is group under multiplication, then inverse of – ι is. Which of the following is a correct option according to the statement? A. ι B. 1 C. −1 D. None of Above E. An All of these F. Both C and B
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A
9: Identity element of a set X with respect to intersection in P(X) is called _______________. A. 0 B. X C. π D. does not exist E. All of these F. Both C and B
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B
10: Extraction of a square root of a given number is called _____________. A. binary operation B. unary operation C. relation D. relation in some set E. All of these F. Both C and B
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B
11: Which of the following is unary operation?. Select the correct option. A. square root B. addition C. multiplication D. None of Above E. All of these F. Both C and B
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A
12: Union of two sets A and B is called _________.select the correct option. A. A ∩ B B. A = B C. A ≠ B D. A ∪ B E. All of these F. Both C and B
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D
13: A function whose range consists of just one element is called is___________. Which of the following is correct. A. identity function B. onto function C. one-one function D. constant function E. All of these F. Both A and B
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D
14: The given function is equal to. (A n B) n C = A. A ∪ (B ∪ C ) B. A n (B n C ) C. A ∪ (B ∪ C ) D. Π E. All of these F. Both A and B
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B
15: Even integer is also called ___________ A. Natural number B. Irrational number C. Whole number D. Rational number E. All of these F. Both A and B
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D
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