" If "vec a timesvec b=vec c timesvec d" and "vec a timesvec c=vec b timesvec d" ,then prove that "vec a-vec d" and "vec b-vec c" are parallel."

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

(vec i timesvec j).vec k=

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 parallel to vec b-vec c

Solve (vec a timesvec a)*vec b

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 aX vec b= vec cX vec d and vec aX vec c= vec bx vec d , show that vec a- vec d is parallel to vec b- vec c , where vec a!= vec d and vec b!= vec cdot

If vec(a) xx vec(b) = vec(c ) xx vec(d) and vec(a) xx vec(c )= vec(b) xx vec(d) then show that vec(a)- vec(d) and vec(b) -vec(c ) are parallel vectors.

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