The matrix 1 A ===== 1 1 defines a transformation of R2. Select all true statements about this transformation. A rotates every vector by 45 anti-clockwise. A halves the area. A rotates every vector by 45 clockwise. A stretches every vector by the same factor. For which value or values of x does the matrix have an inverse? O x = -1,0,1 O No values of a O x = 0 x = +1 A [ x - x -X x