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 principal value of argument of 1 + i is
π/2
π/3
π/4
None of these
-Z
Z2
Z
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
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
Find the value of x and y if 2x + ( 3 x + y) i = 4 + 10 i
x = 4, y = 2
x = 2, y = 4
x = 4, y = 3
x = 3, y = 2
The additive inveerse of -2 + 3 i is
2 + 3 i
-2 -3 i
2 - 3 i
-2 + 3 i
Write i19 in the form x+iy
1 + i
1 - i
O + i
O - i
The conjugate of (6 + 5i)2 is
11 - 60 i
- 11 - 60 i
11 + 60 i
- 11 + 60 i
