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Find the equation of the common tangent of parabola y2=4ax and x2=4by.
Show that the semi latus rectum of the parabola y2 = 4ax is a harmonic mean between the segment of any focal chord.
an equilateral triangle is inscribed in the parabola y2=4ax,where one vertex is at the vertex of the parabola.find the length of the side of the triangle.pls answer me as soon as possible.
The focus of parabola is (1,5) and its directrix is x + y + 2 = 0. Find the equation of the parabola, its vertex and length of latus rectum.
the line lx + my +n=0 is a normal to the parabola y^2 = 4ax if
find the equation of the circle circumscribing the triangle formed by the lines x + y = 6, 2x + y = 4 and x + 2y = 5
find the equation of those tangents to the circle x2+y2-2x-4y-4=0 which are parallel to the line 3x-4y-1=0
find the locus of the mid point of the portion of the line x cosa +yp sin a = p which is intercepted between the axis ??
Find the equation of the circle which has its centre at the point (3,4) and touches the straight the line 5x+12y-1=0.
Find the equqtion of the circle which touches the axes and whose centre lies on x-2y=3.
A circle whose centre is the point of the intersection of the lines 2x-3y+4=0 and 3x+4y-5=0 passes through the origin. find its equation.
A circle of radius 4 units touches the coordinate axes in the first quadrant. Find the equation of its images with respect to the line mirrors x=0 and y=0.
One diameter of the circle circumscribing the rectangle ABCD is 4y=x+7. If the coordinates of A and B are (-3,4) and (5,4) respectively. Find its equation.
Find the equations of circle passing through the points (1,1),(2,2) and whose radius is 1 units?
Prove that (-1,6), (5,2), (7,0), and (-1,-4) are concyclic.
a tangent to the ellipse x2 + 4y2=4 meets the ellipse x2+2y2=6 at P and Q.the angle between the tangents at P and Q of the ellipse x2 +2y2=6
if y = 2x is a chord of the circle x2 + y2 - 10x =0
find the equation of the circle with this chord as diameter
The centre of a circle passing through the points (0,0) & (1,0) & touching the circle x2+y2=9 is: ans is (1/2 , +-root2)..explainAB is a chord of circle x2+y2=25 . The tangents of A & B intersect at C. If (2,3) is the mid-point of AB , the area of quadrilateral OACB is:ams is 50root (3/13) plzz explain3. Extremities of a dagonal of a rectangle are (0,0) & (4,3).Find the equations of the tangents to the circumcentre ofthe reactangle which are parallel to this diagonal.4. Find the equ. of circle described on the common cord of the circles x2+y2-4x-5=0 & x2+y2+8y+7=0 as diameter.ans is x2+y2-2x+4y+1=0..explain.
ams is 50root (3/13) plzz explain
3. Extremities of a dagonal of a rectangle are (0,0) & (4,3).Find the equations of the tangents to the circumcentre ofthe reactangle which are parallel to this diagonal.
4. Find the equ. of circle described on the common cord of the circles x2+y2-4x-5=0 & x2+y2+8y+7=0 as diameter.
ans is x2+y2-2x+4y+1=0..explain.
The members of a family of circles are given by the equation 2 (x2+ y2) + λx -(1 + λ2) y -10 = 0. The number of circles belonging to the family that are cut orthogonally by the fixed circle x2 + y2 + 4x + 6y + 3 = 0 is
(D) none of these
The parametric equations of a parabola are x=t2 +1, y=2t+1.The cartesian equation of its directrix is
a) x=0 b)x+1=0 c)y=0 d) none of these
find the equation of the circle passing through origin and cutting off intercepts a and b from x axis and y axis
one diameter of the circle circumscribing the rectangle ABCD is 4y=x+7.If the coordinates of A & B are (-3,4) &(5,4) respectively , find the equation of the circle.
the minimum area of triangle formed by tangents to ellipse x2/a2+y2/b2 =1 and the coordinate axes is
Find the standard equation of ellipse whose focus is (1,0), the directrix is x+y+1=0 and eccentricity is 1/root2
A circle of constant radius 'a' passes through origin 'O' and cuts the coordinate axes in points P and Q, then the equation of the locus of the foot of perpendicular from O to PQ is(a) (x^2+y^2)(1/x^2+1/y^2)=4a^2(b) (x^2+y^2)(1/x^2+1/y^2)=a^2(c) (x^2+y^2)^2(1/x^2+1/y^2)=4a^2(d) (x^2+y^2)(1/x^2+1/y^2)=a^2
if the line 2x - y +1 = 0 touches the circle at the point (2,5) and the center of the circle lies on the line x+y -9 =0 find the eqn of circle
an ellipse whose foci are(2,4 and (14,9) and touches x)-axis ,then its eccentricity is ?
the tangent to curv y= x^2 + 6 at a point 1,7 touches the circle x^2+y^2+16x+12y+c=0 at a point q then the coordinates of q are :
ans = -6,-7
Find the equation of
the circle passing through the points (4, 1) and (6, 5) and whose
centre is on the line 4x + y = 16.
The foci of a hyperbola coincide with the foci of the ellipse x2/25 + y2/9=1.Find the equation of the hyperbola,if its eccentricity is 2.
The equations of the tangents drawn from the origin to the circle x2 + y2 - 2rx- 2hy + h2=0 are :
if the focus and directrix of a parabola are(3,-4) and x+y+7=0 then its length of latus rectum is??
how can we derive standard equation of ellipse
Number of points on the ellipse x^2/50+y^2/20=1 from which pair of perpendicular tangents are drawn to the elllipse x^2/16+y^2/9=1 is ?
Find the equation of parabola :
directrix : x = y-1
A man running a race course notes that the sum of the distances from the two flag posts from him is always 10m and the distance between the flag posts is 8 metres. Find the equation of the path traced by the man.
the angle subtended by common tangents of two ellipses 4(x-4)2 +25y2=100 4(x+1)2 + y2=4 at the origin (in degrees) is
Find the vertex, axis, focus, directrix, tangent at the vertex, and length of the latus rectum of the parabola:
2y2 + 3y - 4x - 3 = 0
find the equation of circle whose centre is the point of intersection of the lines 2x-3y+4=0 and 3x+4y-5=0 passes through the origin.
find the equation of circle which passes through the centre of the circle x2+y2-4x-8y-41=0 and is concentric with x2+y2-2y+1=0
prove tht points (2,-4)(3,-1)(3,-3)(0, 0)are concyclic
find the equation of ellipse .the distance between foci is 8 unit and the distance between directrix is 18 units.
what is co-axial circle how to determine its equation and also tell its figure
Find the distance between the chords of contact of the tangent to the circle x2 +y2 +2gx+2fy+c=0 from the origin and the point (g,f) .
A circle of radius 2 lies in the first quadrant and touches both the axis.Find the equation of the circle with the centre at (6,5) and touching the above circle externally.
If P is any point on hyperbola whose axis are equal,prove that SP.S'P=CP2 ?
Find the equation of the circle with radius 5 whose centre lies on x-axis & passes through the point (2,3)?
The ceiling in a hallway 20 ft wide is in the shape of a semi ellipse and 18 ft high at the centre.Find the height of the ceiling 4 ft from either wall if the height of the side wall is 12ft.
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