If Z is a complex number such that , then
z is purely real
z is purely imaginary
z is any complex number
real part of z is the same as its imaginary part
The imaginary part of is
4/5
0
2/5
-(4/5)
Express in the standard form a+i b: ((-3+i) (4-2 i)
10+10 i
-10 -10 i
-10 + 10 i
None of these
then x + y is equal to
-2/5
6/5
-6/5
If x = 3 + i, then x3 - 3 x2 - 8 x + 15 is equal to
6
10
45
-15
Write as a complex number.
If Z = r (cos θ + i sin θ), then the value of is
cos 2 θ
2 cos 2θ
2 cos θ
2 sin θ
Express in the standard form of (a+ib):
Let z1 be a complex number with |z1| = 1 and z2 be any complex number, then
1
-1
2
Find the real and imaginary part of (2+i) (3-2 i)
8,1
-8,1
8,-1
-8,-1
