Explore topic-wise MCQs in Mathematics.

This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Mathematics 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.

1/z is _________________ for complex number z.

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

-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
4.

1+0i is _________________ for complex number z.

A. additive inverse
B. additive identity element
C. multiplicative identity element
D. multiplicative inverse
Answer» D. multiplicative inverse
Discussion
5.

0+0i is ______________________for complex number z.

A. additive inverse
B. additive identity element
C. multiplicative identity element
D. multiplicative inverse
Answer» C. multiplicative identity element
Discussion
6.

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
7.

(x+3) + i(y-2) = 5+i2, find the values of x and y.

A. x=8 and y=4
B. x=2 and y=4
C. x=2 and y=0
D. x=8 and y=0
Answer» C. x=2 and y=0
Discussion
8.

In z=4+i, what is imaginary part?

A. 4
B. i
C. 1
D. 4+i
Answer» D. 4+i
Discussion
9.

In z=4+i, what is the real part?

A. 4
B. i
C. 1
D. 4+i
Answer» B. i
Discussion
10.

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

A. a root of 1+x2=0?a) True
B. False
Answer» B. False
Discussion
11.

Value of i(iota) is ____________

A. is ____________a) -1
B. 1
C. (-1)1/2
D. (-1)1/4
Answer» D. (-1)1/4
Discussion