If `vec a xxvec b=vec cxx vec d and vec a xx vec c = vec bxx vec d`, then

If vec axx vec b= vec cxx vec da n d vec axx vec c= vec bxx vec d , then show that vec a- vec d , is paralelto vec b- vec c

If vec axx vec b= vec cxx vec da n d vec axx vec c= vec bxx vec d , then show that vec a- vec d , is parallel to vec b- vec c

If vec axx vec b= vec cxx vec da n d vec axx vec c= vec bxx vec d , then show that vec a- vec d , is parallel to vec b- vec c provided vec a!= harr d and vec b!= vec c dot

If vec a xxvec b = vec c xxvec d and vec a xxvec c = vec b xxvec d then show that vec a-vec d is parallel to vec b-vec c

If vec a xxvec b=vec c xxvec d and vec a xxvec c=vec b xxvec d then show that vec a-vec d is parallel to vec b-vec c where a!=d and b!=c

If vec a xxvec b=vec c xxvec d and vec a xxvec c=vec b xxvec d then show that vec a-vec d ,is paralelto vec b-vec c provided vec a!=hat d and vec b!=vec c

If vec a xxvec b=vec c xxvec d and vec a xxvec c=vec b xxvec d show that vec a-vec d is parallel to vec b-vec c, where vec a!=vec d and vec b!=vec c

If vec a xxvec b=vec c xxvec d and vec a xxvec c=vec b xxvec d show that vec a-vec d is parallel to vec b-vec c, where vec a!=vec d and vec b!=vec r

If vec a , vec b , vec ca n d vec d are distinct vectors such that vec axx vec c= vec bxx vec da n d vec axx vec b= vec cxx vec d , prove that ( vec a- vec d). (vec b- vec c)!=0,

If vec a , vec b , vec ca n d vec d are distinct vectors such that vec axx vec c= vec bxx vec da n d vec axx vec b= vec cxx vec d , prove that ( vec a- vec d)dot (vec b- vec c)!=0,