The set is a vector space The set of 2 by 2 matrices with in
     The set is a vector space.  The set of 2 by 2 matrices with integer entries.  R^3.  The empty set.  The interior of the circle of radius 1 centered at the origin in the xy plane.  P_4(R)  The set of real valued continuous function defined on the interval [0, 1].  The set of points (x, y, z) in R^3 that satisfy x^2 + 3y^2 + 12z^2 = 0.  The set of points (x, y, z) in R^3 that satisfy -3x + 2y + 11z = 0.  The set of polynomials p in P_3 (R) that satisfy integral_0^1 p(x) dx = 0.  The set of polynomials p in P_2(R) that have no real or complex roots. 
  
  Solution
true is given below
these set are vector space
1
2
3
6
7
8
other set are not vector space
that are false

