Let V be a subvector space of Rn . Among the statements below select the correct ones. Question 6Select all that apply: 1. If x and y are in V , then x+2y is in V cross out 2. If x and x+2y are in V , then y is in V . cross out 3. If t⋅x is in V , for some t in R , then x is in V . cross out 4. If u⋅y is in V , for some u!=0 in R , then y is in V . cross out 5. If x+y and x−y are in V , then x and y are in V . cross out 6. x−2y and 2y−x are in V , then x and y are in V .