||'''Book'''|| Linear Algebra ||
 ||'''Author'''|| Gilbert Strang ||
 ||'''Edition'''||  ||

/* code_begins */

{{{
h=matrix([[1,1,1,1],[1,-1,1,-1],[1,1,-1,-1]])
h.inverse()
}}}

/* code_ends */

 * '''Solution by''': 
  * VVL Amruthavalli,student,prakasam Engg college 
  * G.haritha,student,prakasam Engg college
  *G.Mamatha ,student,prakasam Engg college