A. 4
B. 0
C. 2
D. 1
If z2 = (x1/2 + y1/2)/(x1/3 + y1/3), then x(∂z/∂x) + y(∂z/∂y) is :
AB,AC are tangents to a parabola y2= 4ax. If l1,l2,l3 are the lengths of perpendiculars from A,B,C on any tangent to the parabola,then
the equation of the parabola whose vertex is (3,-2) axis is parelle to x- axis and latus rectum 4 is
The equation to the pair of tangents drawn from (3,-2) to the parabola y2 = x is