MEDIUM
Earn 100

Sum of squares of slopes of lines which are common tangents to hyperbolas x216-y29=1 and x29-y216=-1 is 

50% studentsanswered this correctly

Important Questions on Hyperbola

MEDIUM
A tangent drawn to hyperbola x2a2-y2b2=1 at Pπ6 forms a triangle of area 3a2 square units, with coordinate axes. If the eccentricity of hyperbola is e, then the value of e2-9 is
HARD
A line parallel to the straight line 2x-y=0 is tangent to the hyperbola x24y22=1 at the point x1, y1. Then x12+5y12 is equal to
HARD
If the line y=m x+c is a common tangent to the hyperbola x2100-y264=1 and the circle x2+y2=36, then which one of the following is true?
HARD
Let P(4, 3) be a point on the hyperbola x2a2-y2b2=1. If the normal at P intersects the X-axis at (16, 0), then the eccentricity of the hyperbola is
EASY
If the eccentricity of the standard hyperbola passing through the point (4,6) is 2, then the equation of the tangent to the hyperbola at (4,6) is:
MEDIUM
The distance between the tangents to the hyperbola x220-3y24=1 which are parallel to the line x+3y=7 is
MEDIUM
Let P3,3 be a point on the hyperbola, x2a2-y2b2=1. If the normal to it at P intersects the x-axis at 9,0 and e is its eccentricity, then the ordered pair a2,e2 is equal to:
HARD
The total number of points on the curve x2-4y2=1 at which the tangents to the curves are parallel to the line x=2y is
MEDIUM
If the line y=mx+73 is normal to the hyperbola x224-y218=1, then a value of m is:
EASY
Let P be the point of intersection of the common tangents to the parabola y2=12x and the hyperbola  8x2-y2=8. If S and S' denote the foci of the hyperbola where S lies on the positive x-axis then P divides SS' in a ratio:
EASY
The straight line x+y=2p will touch the hyperbola 4x2-9y2=36 if
EASY
If the line 2x+6y=2 touches the hyperbola x2-2y2=4, then the point of contact is
EASY
Consider a hyperbola H : x2-2y2=4. Let the tangent at a point P(4,6) meet the x-axis at Q and latus rectum at Rx1,y1,x1>0. If F is a focus of H which is nearer to the point P, then the area of ΔQFR (in sq. units) is equal to
HARD
If the tangent drawn to the hyperbola 4y2=x2+1 intersect the co-ordinates axes at the distinct points A and B, then the locus of the midpoint of AB is :
MEDIUM
The locus of the midpoints of the chord of the circle, x2+y2=25 which is tangent to the hyperbola, x29-y216=1 is :
MEDIUM
The point P(-26,3) lies on the hyperbola x2a2-y2 b2=1 having eccentricity 52. If the tangent and normal at $P$ to the hyperbola intersect its conjugate axis at the points Q and R respectively, then QR is equal to:
HARD
Let a line L:2x+y=k, k>0 be a tangent to the hyperbola x2-y2=3. If L is also a tangent to the parabola y2=αx, then α is equal to:
MEDIUM
If a hyperbola passes through the point P10,16, and it has vertices at ±6,0, then the equation of the normal to it at P, is.
MEDIUM
A hyperbola passes through the point P2,3 and has foci at ± 2,0. Then the tangent to this hyperbola at P also passes through the point
EASY
The equation of a tangent to the hyperbola, 4x2-5y2=20, parallel to the line x-y=2, is