Which of the following is not applicable for a complex number ?
Addition
Subtraction
Division
Inequality
If z is a complex number then
|z2| >|z2|
|z2| =|z2|
|z2| = z
|z2| ≥|z2|
Given x2 + 2 = 0, then x =
2
√2
±√2 i
-2i
is equal to
i
2i
1 - i
If x = cosθ + i sinθ then the value of xn + 1/xn is
2 cos n θ
2 i sin n θ
2 sin n θ
2 i cos n θ
The equation having 4 - 3i and 4 + 3i as roots is
x2 + 8x + 25 = 0
x2 + 8x - 25 = 0
x2 - 8x + 25 = 0
x2 - 8x - 25 = 0
Multiplicative inverse of the non-zero complex number (x + iy), (x,y∈R) is
a + ib < c + id ; a,b,c,d ∈ R is meaningful only when
a2 + c2 = 0
b2 + c2
b2 + d2 = 0
a2 + d2 = 0
10
8
6
none of these
-1+√-3 = re iθ,then θ is equal to
2π/3
-2π/3
π/3
-π/3
