Explore topic-wise MCQs in Mathematics Questions and Answers.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Mathematics Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.

If z1 = 2+3i and z2 = 5+2i, then find z1-z2.

A. -3+1i
B. 3-i
C. 7+5i
D. 7-5i
Answer» B. 3-i
Discussion
2.

-z is _________________ for complex number z.

A. additive inverse
B. additive identity element
C. multiplicative identity element
D. multiplicative inverse
Answer» B. additive identity element
Discussion
3.

If z1 = 2+3i and z2 = 5+2i, then find sum of two complex numbers.

A. 4+8i
B. 3-i
C. 7+5i
D. 7-5i
Answer» D. 7-5i
Discussion
4.

Is i(iota) a root of 1+x2=0?

A. True
B. False
Answer» B. False
Discussion