defence exam Army Havildar SAC Mock Test Series 2025 Mathematics Complex Numbers Properties of Complex Numbers
I: If z = - z̅, then the imaginary part of z is zero.
II: x2 + y2 = 1, then \(\frac{1+x+iy}{1+x-iy}\) = x + iy
Which of the following statement(s) is/are correct?
1
Only I
2
Only II
3
Both I and II
4
None