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CBSE Class 11-science Answered

The eccentricity of an ellipse, with its centre at the origin, is. If one of the directrix is x = 4, then the equation of the ellipse is:

Asked by GARIMA SRIVASTAVA | 12 Mar, 2011, 04:36: AM

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dear student,

you have not completed the first sentence.

pl send the qn again.

Answered by | 13 Mar, 2011, 11:07: AM

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CBSE 11-science - Maths

find the coordinates of the centre of a circle passing through the points(0,0),(-2,1)and(-3,2).also , find its radius .

Asked by shakyajayprakash2006 | 08 Jun, 2022, 05:26: PM

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CBSE 11-science - Maths

Examine whether the point (4, 5) lies outside or inside the circle of equation x^2+y^2-2x-3=0

Asked by sbipo2000 | 23 Feb, 2020, 03:43: PM

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CBSE 11-science - Maths

SIR PLEASE HELP ME WITH THIS QUESTIONS : 1. Find the equation of the tangent to the circle x^2+y^2=16 drawn from the point (1,4). 2. How many triangles can be formed by joining any 3 of the 9 points when i) no 3 of them are collinear? ii) 5 of them are collinear? 3. AB is a line of fixed length, 6 units, joining the points A(t,0) and B which lies on thepositive y axis. P is a point on AB distant 2 units from A. Express the coordinates of B and P in terms of t. Find the locus of P as t varies. 4. In a triangle ABC, (b^2 - c^2) / (b^2 + c^2) = sin(B - C) / sin(B + C), prove that it is either a right-angled or isoceles triangle.

Asked by kandappan | 08 Feb, 2020, 11:29: AM

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CBSE 11-science - Maths

6

Asked by gauravmore604 | 04 Nov, 2019, 03:31: PM

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CBSE 11-science - Maths

The locus of point for which sum of the squares of distances from cordinate axes is 25 is

Asked by Tejravi969 | 19 Aug, 2019, 06:08: AM

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CBSE 11-science - Maths

Find the equation of the ellipse with centre at the origin , major axis on the x- axis and passing through the point (4,3) and (-1,4)..

Asked by Praktu111 | 09 Jun, 2019, 08:18: AM

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CBSE 11-science - Maths

A stadium is in circular shape. Within the stadium some areas have been allotted for a hockey court and a javelin range, as given in the figure. Assume the shape of the hockey court and the javelin range to be square and triangle, resp. The curators would like to accommodate a few more sports in the stadium. Help them by measuring the unallocated region within the stadium.(the radius of the stadium is 200 mts.)

Asked by rushabh1234 | 23 Jan, 2019, 08:59: PM

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CBSE 11-science - Maths

If PSQ is the focal chord of the parabola y^2=8x such that SP=6 then the length of SQ is 1)3 2)4 3)24

Asked by dineshchem108 | 21 Oct, 2018, 07:54: PM

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CBSE 11-science - Maths

10. A normal is drawn to the hyperbola x^2 / a^2 - y^2 / b^2 = 1 at P which meets the transverse axis at G . If perpendicular from G on the asymptote meets it at L , show that LP is parallel to the conjugate axis.

Asked by sudhanshubhushanroy | 31 Mar, 2018, 11:02: AM

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CBSE 11-science - Maths

(1) A circle is concentric with the ellipse (x^2)/(a^2) + (y^2)/(b^2) =1 and passed through the focus F1 and F2 of the ellipse. Two curves intersect at four points. Let P be any point of intersection. If the major axis of the ellipse is 15 and the area of the triangle PF1F2 = 26 , then find the value of 4a^2 - 4b^2 .

Asked by sudhanshubhushanroy | 20 Mar, 2018, 10:12: PM

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