The complex number 1 + 2i/1 - i lies in
First quadrant
Second quadrant
Third quadrant
Fourth quadrant
Express in the form b or bi, where b is a real number.
2(√5 + √3)
√5 + √3
2(√5 - √3)
2(√5+√3)i
If , then the value of m is
4
5
6
7
The multiplicative inverse of 2+2i is
1/2 - 1/2 i
1/4 - 1/4 i
1/2 - 1/4 i
1/4 - 1/2 i
Write the conjigate of i3
- i3
-i
i
i2
Find the modulus of ( 3 + 4i) ( 4+i)
5√17
√17
2√17
3√17
If conjugate and reciprocal of a complex number z = x + iy are equal , then
x + y = 1
x2 + y2 = 1
x = 1 and y = 0
x = 0 and y = 1
The sum of the three cube roots of unity is
1
-1
0
ω
Determine x and y for which 2x + 3yi = 2+ 9i
x = 1, y = 3
x = 3, y = 1
x = 2, y = 1
x = 1, y = 2
The values of x and y, if 2x + 4i y = -i3 x - y + 3 are
1/3, 4/3
4/3, 1/3
2/3, 1/3
1/3, 2/3
