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The 10th term of the expansion of (x-1)11 (in decreasing powers of x) is
If the line 2x - y + k = 0 is a diameter of the circle x2 + y2 + 6x -6y + 5 =0, then k is equal to
The area bounded by the parabola y2=4ax and the straight line y=2ax is
The area bounded by the curve y = x2 - 4x, x-axis and line x = 2 is
The differential equation which represents the family of plane curves y=exp. (cx) is
If y=x2(x-2)2, then the values of x for which y is increasing, are
The value of k if 1 , 2 , k , − 1 are conjugate points with respect to the ellipse 2 x 2 + 3 y 2 = 6 is
The number of normals to the hyperbola x 2 ∕ a 2 − y 2 ∕ b 2 = 1 from an external point is
The locus of the mid-points of a focal chord of the ellipse (x2/a2) + (y2/b2) = 1 is
If 3 sin⁻1(2x/1 + x2) - 4 cos⁻1(1 - x2/1 + x2) + 2 tan⁻1(2x/1 - x2) = π/3, then x is equal to
The number of values of x where attains its maximum value is
The parabola (y + 1 )2 = a (x − 2) passes through the point (1, − 2) . The equation of its directrix is