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CBSE Class 11-science Answered

If y1, y2, y3 be the ordinates of a triangle inscribed in aparabola y power(2)=4ax, show that the area of the triangle is 1/8a[(y1-y2)(y2-y3)(y3-y1)] ?
Asked by Keshav pradhan | 13 Feb, 2014, 09:18: PM
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Answered by | 14 Feb, 2014, 10:06: AM

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CBSE 11-science - Maths
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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 .
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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.
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CBSE 11-science - Maths
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CBSE 11-science - Maths
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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)..
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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.)  
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