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ECAT - Practice Test - Maths - Number Systems and Sets Quiz

Attempt 10 MCQs on ECAT - Practice Test - Maths - Number Systems and Sets | Quiz 3

21. The set of all rational numbers is denoted by:



22. If A = {1,2,3} and B = {3,4,5}, then A - B is:



23. Which of the following is not a real number?



24. The domain of the function f(x) = 1/x is:



25. What is the sum of 2 + 3i and 4 - i?



26. The set of all real numbers is denoted by:



27. If A = {1,2,3} and B = {1,2,3,4}, then A is a subset of B because:



28. What is the imaginary part of 5 - 2i?



29. Which of the following is a surjective function (onto)?



30. The set of all integers is denoted by:



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