If 2x + 3y + 12 = 0 and x - y + 4 = 0 are conjugate with respect to the parabola y = 8x, then is equal to
2
- 2
3
- 3
For an ellipse with eccentricity the centre is at the origin. If one directrix is x = 4, then the equation of the ellipse is
- 2
- 1
0
1
C.
0
If : RC is defined by f(x) =eix for x ∈ R, then f is (whereC denotes the set of all complex numbers)
one-one
onto
one-one and onto
neither one-one nor onto