If |z2 - 1| = |z|2 + 1, then 2 lies on
a circle
the imaginary axis
the real axis
an ellipse
The complex number z = x + iy which satisfy the equation
real axis
the line y = 5
a circle passing through the origin
None of the above
If we express in the form of x + iy, we get
cos 49θ - i sin 49θ
cos 23θ + i sin 23θ
cos 49θ + i sin 49θ
cos 21θ + i sin 21θ
The roots for the equation a(x2 + 1) - (a2 + 1) x = 0 are
a and 1/a
a and 1/2a
a and 2a
a and -2a
The no. of solution for the eq1uation x2 - 5 |x| + 6 = 0 is
4
3
2
1
If n is any integer, then in is
i
1,-1
i,-i
1,-1,i,-i
If the imaginary part of the complex number is -2, then locus of the point representing in the complex plane , is
Circle
Straight line
Parabola
Ellipse
is equal to __________.
2 i
1 - i
The polar form of complex number -1 - i is
i38 =
-1
-i