The position vectors of four points `A, B, C, D` lying in plane are `a, b, c, d` respectively. They satisfy the relation `|a-d|-|b-d|-|c-d|` , then the point D is

The position vector of four points A, B, C and D are a,b,c and d respectively . If a- b = 2(d-c) the

If vec a ,vec b,vec c and vec d are the position vectors of the points A, B, C and D respectively in three dimensionalspace no three of A, B, C, D are collinear and satisfy the relation 3vec a-2vec b +vec c-2vec d = 0 , then

If veca,vecb,vecc & vecd are position vector of point A,B,C and D respectively in 3-D space no three of A,B,C,D are colinear and satisfy the relation 3veca-2vecb+vecc-2vecd=0 then (a) A, B, C and D are coplanar (b) The line joining the points B and D divides the line joining the point A and C in the ratio of 2:1 (c) The line joining the points A and C divides the line joining the points B and D in the ratio of 1:1 (d)The four vectors veca, vecb, vec c and vecd are linearly dependent .

If bar(a),bar(b),bar(c),bar(d) are position vectors of the points A,B,C and D respectively in three dimensional space and satisfy the relation 3bar(a)-2bar(b)+bar(c)-2bar(d)=0 .Then which of the following is incorrect

If vec a,vec b,vec c and vec d are the position vectors of the points A,B,C and D respectively in three dimensionalspace no three of A,B,C,D are collinear and satisfy the relation 3vec a-2vec b+vec c-2vec d=0, then

If vec a , vec b , vec c , vec d are the position vector of point A , B , C and D , respectively referred to the same origin O such that no three of these point are collinear and vec a + vec c = vec b + vec d , than prove that quadrilateral A B C D is a parallelogram.

If vec a , vec b , vec c , vec d are the position vector of point A , B , C and D , respectively referred to the same origin O such that no three of these point are collinear and vec a + vec c = vec b + vec d , than prove that quadrilateral A B C D is a parallelogram.