The complex number 1 + 2i/1 - i lies in
First quadrant
Second quadrant
Third quadrant
Fourth quadrant
If z is a complex number then
|z^{2}| >|z^{2}|
|z^{2}| =|z^{2}|
|z^{2}| = z
|z^{2}| ≥|z^{2}|
The equation having 4 - 3i and 4 + 3i as roots is
x^{2} + 8x + 25 = 0
x^{2} + 8x - 25 = 0
x^{2} - 8x + 25 = 0
x^{2} - 8x - 25 = 0
is equal to
i
2i
1 - i
2
The principal value of the amplitude of (1 + i) is
π/2
π/4
π
3π/4
The value of (i)^{243} is equal to
^{i }
-i
-1
1
Which of the following is not applicable for a complex number ?
Addition
Subtraction
Division
Inequality
The representation of z = 1 + i√3 in polar form is
2[cosπ/6 + i sinπ/6]
2[cosπ/4 + i sinπ/4]
2[cosπ/3 + i sinπ/3]
2[sinπ/2 + i sinπ/2]
Multiplicative inverse of the non-zero complex number (x + iy), (x,y∈R) is
If n is any integer,then (i)^{n} is
1,-1
i,-i
1,-1,i,-i