Which of the following is not applicable for a complex number ?
Addition
Subtraction
Division
Inequality
The complex number 1 + 2i/1 - i lies in
First quadrant
Second quadrant
Third quadrant
Fourth quadrant
The reciprocal of 3 +i √7 i is
3/4 - √7/4 i
3 - √7 i
3/16 - √7/16 i
√7+3 i
z z¯= 0 iff
Re(z) = 0
Im(z) = 0
z = 0
None of these
-1+√-3 = re iθ,then θ is equal to
2π/3
-2π/3
π/3
-π/3
The reciprocal of 3 + √7 i is
√7 + 3i
If |z2 - 1| = |z|2 + 1, then z lies on
a circle
the imaginary axis
the real axis
an ellipse
If 2x + (3x + y)i = 4 + 10i, then the value of x and y are
2,3
2,4
4,2
3,2
The value of (i)243 is equal to _____________.
i
-i
-1
1
