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JEE Main/Advanced
IMPORTANT
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The orthocenter, circumcentre, centroid and incentre of the triangle formed by lines x+y=a with the coordinate axes lie on :

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Important Questions on Coordinate Systems and Coordinates

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JEE Main/Advanced
IMPORTANT

A and B are fixed points. The vertex C of ΔABC moves such that cotA+cotB= constant. The locus of C is a straight line

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JEE Main/Advanced
IMPORTANT
The points with the co-ordinates 2a,3a,3b,2b and c,c are collinear a,b,c0:
MEDIUM
JEE Main/Advanced
IMPORTANT
A(-5,0) and B(3,0) are two vertices of a triangle A B C. Its area is 20 cm2. The vertex C lies on the line x-y=2, then the vertex C are :
MEDIUM
JEE Main/Advanced
IMPORTANT
If the equation of the locus of a point equidistant from the points a1,b1 and a2,b2 is a1-a2x+b1-b2y +c=0, then the value of c is
EASY
JEE Main/Advanced
IMPORTANT
If the point x1+tx2-x1, y1+ty2-y1 divides the join of x1,y1 and x2,y2 internally, then
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JEE Main/Advanced
IMPORTANT
If P1, 2, Q4, 6, R5, 7 and Sa, b are the vertices of a parallelogram PQRS, then -
HARD
JEE Main/Advanced
IMPORTANT
If the sum of the distances of a point from two perpendicular lines in the plane is 1 , then its locus is :
EASY
JEE Main/Advanced
IMPORTANT
If x1,x2,x3 as well as y1,y2,y3 are in GP with same common ratio, then the points x1,y1,x2,y2 and x3,y3