is equal to __________
i
2 i
1 - i
2
The principal value of argument of 1 + i is
π/2
π/3
π/4
None of these
a + ib < c + id ; a,b,c,d ∈ R is meaningful only when
a2 + c2 = 0
b2 + c2
b2 + d2 = 0
a2 + d2 = 0
(3 + 2i)(4 + 5i) =
7 + 7i
7-7i
2+23i
2-23i
The complex number 1 + 2i/1 - i lies in
First quadrant
Second quadrant
Third quadrant
Fourth quadrant
If n is any integer,then (i)n is
1,-1
i,-i
1,-1,i,-i
-1+√-3 = re iθ,then θ is equal to
2π/3
-2π/3
-π/3
If 2x + (3x + y)i = 4 + 10i, then the value of x and y are
2,3
2,4
4,2
3,2
