A circle having centre at the origin passes through the three vertices of an equilateral triangle the length of its median being 9 units. Then the equation of that circle is
The set of all values of a such that both the points (1, 2) and (3, 4) lie on the same side of the line 3x - 5y + a = 0
A container s the shape of an inverted cone. Its height is 6 m and radius is 4m at the top. If it is filled with water at the rate of 3m/min then the rate of change of height of water(in mt/min) when the water level is 3 m is
The angle between the tangents drawn from the point (1, 2) to the ellipse 3x2 + 2y2 = 5 is
A.
(a) Let S = 3x2 + 2y2 - 5 Then equations of pair of
tangents drawn to the ellipse s from the point (1, 2)
is