A. [1, ∞]
B. (0, 1) (1, 4)
C. (-2, 4)
D. (1, 3) (3, 5)
The least value of (x-a) (x-b) occurs at x=
F(x)= tan-1 x is
The approximate value of 4√80 is
The curve whose subtangent is twice the abscissa of the point of contact and passing through (1,2) is
The subnormal to the curve y=ax at any point varies directly as
If the tangent at the point (at2, at3) on the curve ay2=x3 meets the curve again at Q, then Q=
The angle between the curves y2=x, x2=y at (1, 1) is
The function f(x)=√9-x2 is increasing in
The point on y=x2+7x+2 which is closest to the line y=3x-3 is
The two curves 2x2+y2=20, x2-4y2+8=0