Popular Cartesian Coordinates Questions

1.the radius of the circle whose centre is[-4,0] and which cuts the parabola y2=8x at A and B such that its common chord AB subtends a right angle at the vertex of the parabola is equal to a.4 b.3 c. 18 d.5 2.a normal is draw ...

Consider an equilateral triangle ABC with side length 2.1cm. Find the minimum number of equilateral triangles with side length 1cm which can be placed over ΔABC so that it is completely covered. ...

P is the point (-1,2) , a variable line through p cuts the axes in A and B . Q is a point on AB such that PA, PQ ,PB are in H.P. find the locus of Q ...

If two opposite vertices of square are (3,4) and (1,-1) then the other two vertices are ? ...

If m1 and m2 are the roots of the equation x^2+(√3+2)x+√3-1=0.then find the area of the triangle formed by the lines y=m1x,y=m2x and y=c. ...

2.the girder of a railway bridge is a parabola with its vertex at the highest point 15m above the ends.if the span is 120 m find the height of the bridge at 24m from the middle point. ...