" 5.If "axb=cxd" and "axc=bxd" then show that a "-d" is parallel to "b-c

If a xx b = c xx d and a xx c = b xxd , show that (a-d) is parallel to (b-c), it being given that a ne b and b ne 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

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 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 axvec b=vec cxvec d and vec axvec c=vec bxvec 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 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 axx vec b= vec cxxvec d and vec axx vec c= vec bxxvec d , show that vec a- vec d is parallel to vec b- vec c where vec a != vec d , 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