please solve

3. Let M22 be the vector space of all real 2x2 matrices. Answer the questions below, explaining your method and using correct notation. _ 1 0 1 0 1 1 D 1 . . a. :owthatc {[1 1],[0 1]'[ _1],[1 0 1} use basis for 22- b. Find the coordinates of [g 34] with respect to C. :b g],a,b,c E R]. Show that W is a subspace of M22 using the method of your choice. (Read part (d) as well. You can do parts it] and (d) at the same time if you wish). d. What is a basis for W? c. Consider the subset of M22 given by W = {