Complex numbers multiple choice questions (MCQs), complex numbers quiz answers to learn math courses online. Number system MCQs, complex numbers quiz questions and answers for online college degrees. Learn number systems: sets, properties of real numbers, groups in maths, complex numbers test prep for online certifications.

Practice number system test MCQs: if z1 = 2 + ι, z2 = 1 + 3ι, then ι re ( z1 - z2 ) =, with choices 1, ι, 2 ι, and 2 for online college degrees. Practice assessment test for scholarships, online learning complex numbers quiz questions for competitive assessment in math major.

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

1. 1
2. ι
3. 2 ι
4. 2

B

MCQ: Polar form of a complex number is

1. r ( tanθ + ιcotθ )
2. r(secθ + ιcosecθ )
3. r(cosθ + ιsinθ )
4. r (sinθ + ιcosθ)

C

MCQ: |z1 + z2 | =

1. > |Z1| + |Z2|
2. ≤|Z1| + |Z2|
3. ≤ Z1 + Z2
4. > Z1 + Z2

B

MCQ: |z1 - z2 | =

1. > |Z1| + |Z2|
2. ≤|Z1| + |Z2|
3. ≤ Z1 + Z2
4. > Z1 + Z2

B

MCQ: A² + b²

1. (a + b )(a-b)
2. (a + ι b)(a -ι b)
3. (a + b )(a- ι b)
4. (a + ι b )(a - b)

B