Wednesday, 19 November 2014

Complex numbers corresponding to four vertices of square are roots of the equation  x^4 + bx^3 +cx^2+dx+e=0 with integer coeficients find the minimum area of the square

problem on conic sections-1


A(0,2) ,B and C are three points on the parabolaY^2 = x + 4  such that AB is perpendicular to BC  find the range of values of  y

Friday, 29 March 2013

Problem on Triangle(2)

ABC is an equilateral  triangle let point P be inside triangle let D , E , F be feet of perpendiculars from P upon BC , CA, AB respectively  Show that PD+PE+PF is independent of choice of P

Wednesday, 27 March 2013

simple problem on Triangle

ABC is a Right angled triangle with Orthocentre at A Find the position of point P on the perimeter of triangle such that PA + PB + PC is Minimum

Monday, 25 March 2013

Thursday, 21 March 2013

Problem on parabola

From a point P(c,d) a tangent is drawn to the parabola meeting the curve at T. Find length of projection of PT on tangent at vertex of the parabola.

Problem on straight line: Communicated by Sridhar Indharapu

The number of rational points on the line joining the points