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The equation of the directrix of the parabola (2x-3y-5)2=20(3x+2y+1) is

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Important Questions on Parabola

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IMPORTANT
If two tangents to the parabola y2=8x meet the tangent at its vertex in M and N such that MN=4, then the locus of the point of intersection of those two tangents is
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IMPORTANT
If x-2y+k=0 is a tangent to the parabola y2-4x-4y+8=0, then the slope of the tangent drawn at 1, k on the given parabola is
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The number of points on the parabola y2=x at which the slope of the normal drawn at the point is equal to the x-coordinate of that point is
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Three normals are drawn from the point c,0 to the curve y2=x. If one of the normals is X-axis, then the value of c for which the other two normals are perpendicular to each other is
HARD
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IMPORTANT

Consider the curves C1:y2=4x and C2:x2+y2-6x+1=0

 Assertion (A): The common tangents to the curves C1 and C2 are orthogonal.

Reason (R): x-y+1=0 and x+y+1=0 are the common tangents to the curves C1 and C2

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Let A1,2, B4,-4, C2,22 be points on the parabola y2=4x. If α and β respectively represent the area of ΔABC and the area of the triangle formed by the tangents at A, B, C to the above parabola, then αβ=