If , then is (where is complex conjugate of z).
2 (1 + i)
(1+i)
The modulus of -2 + 4i is
5√2
5/√2
2√5
√5
The smallest positive integer n for which (1+i)2n = (1-i)2n is
1
2
3
4
If α and β are different complex numbers with |β| = 1 then is
0
3/2
1/2
Let z1 be a complex number with |z1| = 1 and z2 be any complex number, then
-1
The values of x and y satisfying the equation are
x = 1, y = 3
x = 3, y = -1
x = 0, y = 1
x = 1, y = 0
Express in the standard form of (a+ib):
None of these
If (x + i y)1/3 = 2 + 3 i, then 3 x + 2 y is equal to
-20
-60
-120
60
then x + y is equal to
-2/5
6/5
2/5
-6/5
Find the real and imaginary part of (2+i) (3-2 i)
8,1
-8,1
8,-1
-8,-1
