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Practice number system multiple choice questions (MCQs), math test 1 online to learn. Practice complex numbers MCQs questions and answers on complex numbers, operation on three sets, groups in maths, rational numbers and irrational numbers, linear and quadratic function with answers. Free number system study guide has answer key with choices as ι, 1, 2 ι and 2 of multiple choice questions (MCQ) as if z1 = 2 + ι, z2 = 1 + 3ι, then ι re ( z1 - z2 ) = to test learning skills. Study to learn complex numbers quiz questions to practice MCQ based online exam preparation test. Subscribe MCQsLearn Channel

MCQ. If z1 = 2 + ι, z2 = 1 + 3ι, then ι Re ( z1 - z2 ) =

1. 1
2. ι
3. 2 ι
4. 2

B

MCQ. (A ∪ B) ∪ C =

1. A ∩ (B ∪ C )
2. A ∪ (B ∪ C )
3. π
4. A ∪ (B ∪ C )

D

MCQ. { - 3 n : n ε Z } IS an abelian group under

1. subtraction
2. division
3. multiplication

D

MCQ. Every even integer is also

1. Natural number
2. Irrational number
3. Rational number
4. Whole number

C

MCQ. Function f = { (x,Y) | Y = mx + c } is