The value of (i)243 is equal to
i
-i
-1
1
The complex numbers sinx + i cos2x and cosx - i sin2x are conjugate to each other for
x = nπ
x = (n + 1/2)π
x = 0
No value of x
The sum of the three cube roots of unity is
0
ω
If ∝ and β are roots of the equation x2 - px + q = 0, then value of ∝4 + β4 in terms of p and q is
p4 - 2q2
p4 - p2q
p2 + 4p2q
p4 + 2q2 - 4p2q
The value of (i)243 is equal to _________
For real value of x, the function will assume all real values provided
a > b > c
a < b < c
a > b < c
a < c < b and a> c > b
The complex number 1 + 2i/1 - i lies in
First quadrant
Second quadrant
Third quadrant
Fourth quadrant
The real part of the complex number is
1/4
1/2
tan θ/2
The no. of solution for the equation x2 - 5 |x| + 6 = 0 is
4
3
2
If the equation mx2 - 4x + 2 (m + 1) = 0 has real roots, then the value of m is
-2 ≤ m ≤ 1
-1 ≤ m ≤ 1
2 ≤ m ≤ 3
None of these
